iOptron Telescope IEQ75 GTTM User Manual

SmartStar^®iEQ75-GT^TM

Instruction Manual

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5.5. Align......................................................................................................................................................25

5.5.1. One-Star Align................................................................................................................................25

5.5.2. Two-Star Align...............................................................................................................................25

5.5.3. Dis R.A axis error...........................................................................................................................26

5.5.4. Polaris Position...............................................................................................................................26

5.6. PEC Option............................................................................................................................................26

5.7. Set Up Tracking.....................................................................................................................................26

5.8. Auto Guide ............................................................................................................................................26

5.8.1. Set Guider Rate...............................................................................................................................26

5.8.2. Set Guider Direction.......................................................................................................................26

5.9. Park Scope.............................................................................................................................................27

5.9.1. Park Scope......................................................................................................................................27

5.9.2. Set Park Position.............................................................................................................................27

5.10. To Zero Position..................................................................................................................................27

6. Maintenance and Servicing ..........................................................................................................................28

6.1. Maintenance ..........................................................................................................................................28

6.2. iOptron Customer Service .....................................................................................................................28

6.3. Product End of Life Disposal Instructions ............................................................................................28

6.4. Battery Replacement and Disposal Instructions....................................................................................28

Appendix A. Technical Specifications.............................................................................................................29

Appendix B. GoToNova^®8406 HC MENU STRUCTURE............................................................................30

Appendix C. Firmware Upgrade ......................................................................................................................32

Appendix D. Use a PC to Control an iEQ75-GT Mount..................................................................................33

Appendix E. GoToNova^®Star List ..................................................................................................................34

IOPTRON TWO YEAR TELESCOPE, MOUNT, AND CONTROLLER WARRANTY............................41

WARNING!

NEVER USE A TELESCOPE TO LOOK AT THE SUN WITHOUT A PROPER FILTER!

Looking at or near the Sun will cause instant and irreversible damage to your eye. Children

should always have adult supervision while observing.

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1. iEQ75-GT^TMOverview

The iEQ75-GT™ is a one-of-a-kind premium CNC-machined astro-imaging mount from iOptron. The

iEQ75-GT™ offers the next generation GoTo technology from iOptron. With a Renishaw high resolution

encoder-enabled double closed-loop tracking, the system is able to tracking the target with a tracking error

less that ±1 arcsec. The iEQ75-GT™ has a payload of 75 lb (34 kg) and includes a calibrated dark field

illumination polar scope. Its unique base design makes it easy for just one person to carry to location.

Features:

•

Premium CNC-machined astrophotography mount suited for advanced imaging

Heavy duty German equatorial mount

Maximum payload: 75 lb (34 kg) (excluding counterweight)

Mount weight: 52 lb (23.6 kg)

Angular contact ball bearings for R.A and DEC axles, as well as worm gear shafts

Precision DC servo motor-driven and double closed-loop tracking with Renishaw high resolution

encoder feedback

•

32-bit ARM system for ultra-accurate tracking with temperature-compensated crystal oscillator

(TCXO)

•

Maximum tracking error: ± 1 arc second

Advanced GOTONOVA^®technology for accurate GOTO and tracking

Built-in 32-channel Global Positioning System (GPS)

Integrated ST-4 autoguiding port capable of reverse guiding with auto-protection

Hand Box (HBX) port for hand controller connection

iOptron port for electronic focuser, laser pointer, planetary dome control

RS232 port for firmware upgrading and computer control via ASCOM platform

Calibrated polar scope with dark-field illumination and easy polar alignment procedure, allowing for

fast and accurate polar alignment

•

Heated hand controller for low temperature operation as low as -20ºC

Comes standard with:

o a mounting plate for Vixen or Losmandy-D saddles

o a Vixen dovetail saddle

o stainless steel counterweight shaft with safety lock

o 2 x 16.5 lb (7.5 kg) stainless steel counterweights

o 12V DC car plug adaptor

o USB cable

o RS232 Cable

•

Optional tripod or pier

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2. iEQ75-GT^TMAssembly

2.1. Parts List¹

The parts comes with the iEQ75-GT^TMorder include an EQ mount (Figure 1), one mounting plate

(Figure 2), 2 counterweights and an CW shaft (Figure 1). Other parts are, as shown in Figure 4, an 8406

hand controller, coiled hand controller cable, a Vixen dovetail saddle, R.A. and DEC cables, a dark field

illuminating LED with cable, a 12V DC adapter cable with car lighter plug, a USB Cable, a RS232 cable,

GPS antenna, a hex key set, 4 base mounting screws, and 8 M6X20 hex head screws

Figure 1. iEQ75-GT mount

Figure 2. Mounting plate

¹Actual contents may vary from time to time.

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Figure 3. Counterweights and CW shaft

Figure 4. Included accessories

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2.2. Assembly terms

DEC Unit

Mounting plate

DEC DIN cable

Polar Axis Cover

R.A. Unit

Main control box

Polar Scope Cover

CW Shaft

Lat. Locking Screw

Azi. Adjust. Knob

Counterweight (CW)

8406 Hand Controller

CW Safety Screw

Azi. Locking Screw

Tripod Head

Alignment Peg

Tripod Spreader

Tripod Lock

Tripod Leg

Leg Lock Screw

Figure 5. iEQ75-GT assembly terms (mount and optional tripod)

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2.3. iEQ75-GT^TMPorts

Figure 6. Ports on iEQ75-GT^TMcontrol box

•

R.A. and DEC motor: For connecting to R.A. and DEC driver unit

Power: Power switch

DC 12V: 12 volts DC power plug (center positive)

HBX (Hand Box): For connecting to the 8406 Hand Controller

iOptron port: For connecting to other iOptron accessories, such as an electronic focuser, a laser

pointer, or a planetary dome control

•

RS232: Series port for ASCOM control and main board firmware upgrade

Autoguide: Autoguiding port for ST-4 compatible guiding cameras

GPS: GPS antenna connection

Reticle: Power supply for the Polar Scope dark field illumination LED

2.4. Introduction

You have just purchased a telescope mount that is capable of taking you to a new level of

astronomy. No matter which telescope or optical tube assembly (OTA) you select to install on the mount,

the overall performance will be greatly enhanced. In order for you to get the optimum performance from the

mount and OTA combination, you must assemble and adjust the mount correctly. The following

fundamentals of telescope mounts are included to help you understand the big picture before you get into

the specific details of the iEQ75-GT mount.

Telescope mounts are either equatorial mounts or altitude-azimuth (Alt-Az) mounts. Both types of

mounts rotate the OTA around two perpendicular axes to point to a desired object in the night sky. An

equatorial mount has the right ascension (R.A.) axis aligned with the celestial North Pole (CNP), or celestial

South Pole (CSP), to provide rotation matching the celestial sphere rotation around the Earth and the

declination axis (DEC) to provide elevation relative to the celestial equator. Since all celestial objects

appear to rotate around the CNP, the R.A. axis allows the OTA to rotate with the celestial sphere and

provide accurate tracking for visual observations and astrophotography. R.A. is the celestial equivalent of

longitude. Like longitude, R.A. measures an angle that increases toward the East as measured from a zero

reference point on the celestial equator. An Alt-Az mount has a horizontal axis to provide vertical (altitude)

OTA movement from the local horizon and a vertical axis to provide horizontal (azimuth) OTA movement,

similar to compass headings. An Alt-Az mount can provide tracking that is good enough for visual observing

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and short exposure photos, but not good enough for serious astrophotography. Alt-Az mounts require star

alignments for the OTA to track stars and they do not have adjustment components on the mount.

Equatorial mounts require alignment of the mount components as well as star alignments for accurate OTA

tracking.

In order to provide the required Polar Axis alignment, equatorial mounts use a combination of both

mount types described above. The adjustable part of the mount moves in the Alt-Az mode in order to align

the R.A. axis, also known as the mount’s Polar Axis, with the CNP. These Polar Axis adjustments do not

involve any rotations of the OTA about the R.A. or DEC axes and can be performed without the OTA

installed. The first step is to make an approximate azimuth alignment of the Polar Axis by aligning the

specified tripod leg or reference point toward True North using a compass for reference (you must allow for

the variation between True and Magnetic North at your location). Precise horizontal alignment of the Polar

Axis is accomplished with azimuth adjustments on the mount. The second step is to adjust the Polar Axis

vertically (altitude) above the North horizon by setting the observer’s latitude on the provided latitude scale.

This procedure is based on the fundamental geometry of the Earth’s coordinate system in conjunction with

the concept of the celestial sphere. You can verify this by visualizing yourself at the North Pole (latitude

N90°) and Polaris will be 90° from the horizon, or directly overhead. These steps will place the Polar Axis

very close to the CNP. Both of the above adjustments can be enhanced by the use of an opening along the

R.A. axis that allows direct viewing of the North Star and the use of a polar scope to view through this

opening. If you are going to get the most out of your equatorial mount it is essential to understand the

concept of the Polar Axis and how the equatorial mount helps you establish and maintain a true Polar Axis

alignment. Now, you are ready to perform star alignments using the equatorial mount’s electronic controller

and enjoy the night sky.

The iEQ75-GT is a next-generation equatorial mount that provides the precision alignment

capabilities required for today’s complete astronomy solution. The following sections of this manual provide

the detailed steps required to successfully set up and operate the iEQ75-GT.

2.5. iEQ75-GT Assembly

NOTE: The iEQ75-GT is a precision astronomical instrument. It is highly recommended that you

read the entire manual and become familiar with the nomenclature and function of all components

before starting the assembly.

STEP 1. Setup Tripod

Expand the tripod legs and install the Tripod Support using the Tripod Lock as shown in Figure 7.

Tightening the Tripod Lock will expand the tripod legs fully and provide maximum support for the mount and

the Optical Tube Assembly (OTA). Adjust the tripod height by unlocking the tripod Leg Lock Screws, sliding

the lower tripod leg to the desired length, and relocking the tripod Leg Lock Screws. It is recommended that

you extend the legs fully during the first assembly and modify the length as required in subsequent

adjustments. After the legs are adjusted and locked, stand the tripod with the Alignment Peg facing True

South. If you are located in the southern hemisphere, face the Alignment Peg True North.

STEP 2. Attach the iEQ75-GT Mount

Locate the Azimuth Adjustment Knobs and retract them to allow enough clearance for the mount to

fit on the tripod head. Unscrew the four (4) Azimuth Locking Screws shown in Figure 8. Place the mount

onto the Tripod Head with the alignment notch on top of the Alignment Peg. Place the four (4) Azimuth

Locking Screws back and tighten the screws. Level the tripod base by adjusting the individual legs. You

need a level to check leveling.

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Figure 7. Tripod

Figure 8. Attaching the mount

STEP 3. Connect Cables

Figure 9. Cable connections

There are two DIN 6 cables that have C091 connectors on both ends of the cable. Insert one end of

the DIN 6 cable into the R.A. socket on the control box, and the other end into the socket located on R.A.

driver unit, as shown in Figure 9. Secure both ends of the DIN 6 cable. Connect another DIN 6 cable

between the DEC socket on the control box and the DEC socket on DEC driver unit. Attach the DIN 6 end

of a DIN-RJ-11 cable into the HBX socket on the control box and the RJ-11 end into the hand controller.

Connect the GPS antenna into the GPS socket on the control box. Plug the 12V DC power supply (center

positive) into the Power socket on the control box. The back light of the hand controller will illuminate when

the power switch is turned on.

STEP 4. Set the Location Latitude

This step requires you to know the latitude of your current location. This can be found from your

8406 hand controller after the embedded GPS receives the signal from the satellites. It also can be easily

found on the Internet, with your GPS navigator or a GPS capable cell phone. You will have to change this

latitude setting every time you significantly change your night sky viewing location.

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Lat. Adjust. Lever

Azi. Adjust. Knob

Latitude Adjustment Knob

Figure 10. Adjust latitude

Unscrew the Latitude Adjustment Lever from the Latitude Adjustment Knob as shown in Figure 10.

Turn the Latitude Adjustment Knob to set your current latitude, using the Latitude Adjustment Lever for a

fine adjustment, if needed. At this point, with the mount level and pointed North, and the latitude set, the

Polar Axis (R.A. axis) should be pointing very close to the NCP and Polaris.

CAUTION: For safety reasons, always adjust the latitude without an OTA and/or counterweights

installed. Also, it is much easier to make this precise adjustment without a load on the axis being

adjusted.

STEP 5. Polar Alignment

As explained in the introduction, an equatorial mount must have an accurate polar axis alignment in

order to track properly. With the iOptron innovative Polar Scope and Quick Polar Alignment procedure, you

can do a fast and accurate polar axis alignment.

Figure 11. Polar Scope Dial

As indicated in Figure 11, the Polar Scope Dial has been divided into 12 hours along the angular

direction with half-hour tics. There are 2 groups, 6 concentric circles marked from 36’ to 44’ and 60’ to 70’,

respectively. The 36’ to 44’ concentric circles are used for polar alignment in northern hemisphere using

Polaris. While the 60’ to 70’ circles are used for polar alignment in southern hemisphere using Sigma

Octantis.

Polar axis adjustments

Whenever polar axis adjustments are required, loosen the four Azimuth Locking Screws and adjust

the Azimuth Adjustment Knobs to do a fine adjustment of the mount in the azimuth direction. Tighten

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the locking screws to secure the mount. Loosen four Latitude Locking Screws on the side of the

mount, turning the Latitude Adjustment Knob to adjust the latitude (altitude). Use the Lever for a fine

latitude adjustment. Re-tighten the lock screws.

Initializing the polar scope

During initial setup of the iEQ mount, it is likely that the viewing hole on the DEC axis of the polar

scope may be blocked by the DEC axle. The Polar Scope Dial in the polar scope should be set at

the normal clock position with 12 o’clock located at the top, as shown in Figure 11. Before doing the

Quick Polar Axis Alignment, complete the following steps:

(1) Take off both the Polar Axis Cover and the Polar Scope Cover from the mount.

(2) Thread the dark field illuminating LED end into the threaded hole and plug the other end into the

Reticle socket located on the control box (Figure 12). The illumination intensity can be adjusted

using the hand controller (HC) via the “Set Eyepiece Light” function under the “Set Up

Controller” menu.

(3) Use the UP or DOWN button to turn the DEC axle if it blocks the Polar Scope view, press

number buttons to change the slew speed.

(4) If the 12 o’clock of the Polar Scope dial is not at the top, as shown in Figure 11, rotate it using

HC’s LEFT or RIGHT button.

Figure 12. Connect the illumination LED to Polar Scope

NOTE: Do not disassemble the Polar Scope to rotate it. It is adjusted at the factory and can

be misaligned if you disassemble it. A good Polar alignment is the basis for good GOTO and

tracking performance.

Quick polar axis alignment

(1) Turn on the mount power by pressing the On/Off switch on the R.A. unit. After “GPS OK” is

shown in the upper right corner of the HC, the LCD will display the Polaris Position as shown in

Figure 13 (a). If you are practicing inside or when there is no GPS signal, you can view this

chart by pressing the MENU button, then select “Align” and “Polaris Position”. For example,

on May 30, 2010, 20:00:00 in Boston, US (Lat N42º30’32” and Long W71º08’50”), 300 min

behind UT, the Polaris Position is 1hr 26.8m and r= 41.5m, as shown in Figure 13 (a).

(2) Look through the polar scope; make sure the polar scope is not blocked by the DEC axle. The

12 o’clock indicator of the Polar Scope Dial must be positioned on top.

(3) Follow the Polar axis adjustment procedure (not the hand controller) to adjust the mount in

altitude (latitude) and azimuth (heading) direction and place Polaris in the same position on the

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Polar Scope Dial as indicated on the HC LCD. In this case, the Polaris will be located at a radius

of 41.5’ and an angle of 1 hour 26.8 minute, as shown in Figure 13 (b).

(a)

(b)

Figure 13. Polaris displayed on 8406 hand controller (a) and Polaris located on Polar scope dial

STEP 4. Attach Dovetail Adapter

Install the Mounting Plate onto the iEQ75-GT mount. Both Vixen (included) and Losmandy-D

dovetail saddles can be used. The mounting-hole distribution on the Mount Plate is shown in Figure 14.

Figure 14. The mounting-hole distribution on the Mount Plate

STEP 7. Install Counterweight(s)

iEQ75-GT comes with two 16.5 lb (7.5 kg) stainless steel counterweights (CWs). Use one or both

CWs as required for your particular OTA. Additional CW(s) may be needed to balance a heavier OTA

(Optional CWs are available from iOptron).

CSUTION: The mount must be at the zero position when the counterweights are being installed. The

Zero Position is the position with the CW shaft pointing toward the ground, as shown in Figure 15. Use your

hand controller to move the mount.

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Figure 15. Zero position

Remove the CW Safety Screw on the end of the CW shaft. Loosen the CW Locking Screw on the

side of the CW (there is a CW pin inside) and slide the CW into the shaft. Tighten the CW Locking Screw to

hold the CW in place. Tighten the CW Safety Screw.

CAUTION: For safety reasons, the CW Safety Screw must be installed and tightened to prevent the

CW from dropping off the end of the CW shaft. This can cause serious personal injury.

STEP 8. Attach and Balance an OTA on the Mount

After attaching an OTA and accessories to the mount, the mount must be balanced to ensure

minimum stress on the mount’s gears and motors. There are no clutch screws on either R.A. or DEC axes.

The balancing is performed using iOptron Electronic Balance technology.

Set the mount at Zero Position first. If it is not, turn the mount on, press the arrow key on the hand

controller to adjust the mount position. Press number key on the hand controller to select appropriate

speed. After the Zero Position is adjusted, turn the power off.

Balance the mount in R.A. and DEC axes

When the mount is rest at Zero Position, turn the mount power on. Press the MENU button, scroll

down to “Balance Test”, and press ENTER. The mount will start to slew and stop at the balance test

position, as shown in Figure 16.

Figure 16. Balance test position

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A “Testing R.A. Balance” screen will be displayed. Press the ENTER key to start the test. After few

swings, a test results will be displayed on the hand controller LCD screen:

Figure 17. R.A. Balance Test

Follow the arrow indicator to move the CW left or right. The more the arrow is shaded, the more the

CW needs to be moved. Press the ENTER key to test it again, until the OK sign is displayed or ¼ or less of

the arrow key is shaded.

Press ◄ ► ▲ or ▼ button on the hand controller to toggle between R.A. and DEC testing. Press

ENTER to start the DEC balance test. Move the telescope back and forth to balance the OTA around the

DEC axis.

Figure 18. DEC Balance Test

NOTE: If you are located in southern hemisphere, Sigma Octantis will be chosen for Polar

Alignment. For example, on May 20, 2010, 20:00:00 in Sydney, Australia (Lat S33º51’36” and Long

E151º12’40”), 600 min ahead of UT, the Sigma Octantis Position is 1hr21.8m and 64.4m.

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3. GoToNova^®8406 Hand Controller

USB

Port

HBX

Port

Figure 19. GoToNova 8406 hand controller

The GoToNova^®8406 hand controller (HC) shown in Figure 19 is the standard controller for the

iEQ75-GT mount. It has an integrated temperature controller that ensures it can be operated below 20ºC (-

4ºF).

3.1. Key Description

•

MENU Key: Press “MENU” to enter the Main Menu.

BACK Key: Move back to the previous screen, or end/cancel current operation, such as slewing.

ENTER Key: Confirm an input, go to the next menu, select a choice, or slew the telescope to a

selected object.

•

Arrow (▲▼◄►) Keys: The arrow keys are used to control the movement of DEC and R.A. axes.

Press and hold ▲(DEC+),▼(DEC-) buttons to move a telescope along the DEC direction,

◄(R.A.+), ►(R.A.-) to move a telescope along the RA direction. They are also used to browse the

menu or move the cursor while in the menu.

•

Number Keys: Input numerical values. Also used to adjust speeds (1: 1X; 2: 2X; 3: 8X; 4: 16X; 5:

64X; 6: 128X; 7: 256X; 8: 512X; 9: MAX)

•

Light Key(☼): Turns on/off the red LED reading light on the back of the controller.

? Key: For help or extra information.

STOP/0 Key: Stop/Start tracking.

HBX (Handbox) port: connect the HC to the iEQ75-GT mount using a 6-wire RJ11 cable.

USB port: connect the HC to a Computer via a USB cable.

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3.2. The LCD Screen

The 8406 HC has a large 8-line, 21 character LCD screen, which displays all the information as

shown in Figure 20. The user interface is simple and easy to learn.

Figure 20. 8406 HC LCD Information Screen

1. Target Name/Mount Position: displays the name of the target that telescope is currently pointed to or

the current mount position.

•

User Position: When the mount is turned on.

An object name, such as “Mercury” or “Andromeda Galaxy”: Name of the Star or celestial object

that the mount is currently slewing to, GOTO or tracking;

•

User R.A. DEC. Now: The mount is slewed to a target with manually entered R.A. and DEC

numbers;

•

Zero Position: The mount is moved to Zero Position using “To Zero Position” command;

Park Position: Display one of six scope parking position, such as “Up North” after using “Park

Scope” command.

2. Target R.A.: Right Ascension of the target object.

3. Target Declination: Declination of the target object.

4. Right Ascension: Right Ascension of the telescope, or R.A.

5. Declination: Declination of the telescope, or DEC.

6. Altitude: Altitude of the telescope (degrees vertical from the local horizon - zenith is 90º).

7. Azimuth: Azimuth of the telescope (north is 0º, east 90º, south 180º, and west 270º).

8. Local Date and Time: display local time in a format of YYYY-MM-DD.

9. Mount Status: Display the current operation or tracking status of the mount.

•

Stop: mount is stop moving;

Slew: mount is slewing to a target;

Cel: mount is tracking at a celestial speed;

Sol: mount is tracking at a solar speed;

Lun: mount is tracking at a lunar speed;

King: mount is tracking at a user defined tracking speed.

10. Slew speed: It has 9 speeds: 1X, 2X, 8X, 16X, 64X, 128X, 256X(1º/sec), 512X(2º/sec), MAX(~ 4º/sec).

11. GPS status: When the power is turned on, it shows “GPS ON”, which means a GPS receiver is

properly connected. When the GPS receiver finds the satellites and receives the GPS signal, it shows

“GPS OK”. The “GPS OK” may turn off after few minutes to save power.

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4. Getting Started

In order to experience the full GOTO capability of GoToNova technology it is very important to set up

the mount correctly before observation.

4.1. Setup the Mount and Polar Alignment

Setup and polar alignment your iEQ75-GT mount according to Section 2.5. The default position for

the mount is the Zero Position, as shown in Figure 15, when the mount is powered on: the counterweight

shaft is pointing to ground, telescope is at the highest position with its axis parallel to the polar axis and the

telescope is pointing to the North Celestial Pole.

4.2. Manual Operation of the Mount

You may observe astronomical objects using the arrow keys of a GoToNova hand controller.

Flip the I/O switch on the telescope mount to turn on the mount. Use ►,◄,▼ or ▲ buttons to point

the telescope to the desired object. Use the number keys to change the slewing speed. Then press STOP/0

button to start tracking.

4.3. Setting Up the Hand Controller

The iEQ75-GT is equipped with a GPS receiver, which will receive the local time, longitude and

latitude information from satellites after the link is established. A clear sky outside is needed for the GPS to

establish its link with the satellites.

4.3.1. Set Up Local Time

Press MENU button, from the main menu, scroll down and select “Set up controller”

Select and slew

Sync. to target

Electronic focuser

Set up controller

Align

PEC option

Set up Tracking

User objects

Press ENTER and select “Set up local Time”

Set up Local Time

Set up Observ. site

Set N/S hemisphere

Set display contrast

Set Eyepiece light

Set Backlight

Set Backlash Value

Set Key Beep

Press ENTER.

Set local time:

2008-06-01 11:55:09

Daylight Saving Time Y

The time will be updated automatically when the GPS has picked up a signal. You also can manually

input the time information in case GPS does not function. Use the ◄ or ► key to move the cursor and use

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number keys to change the numbers. Use the ▲ or ▼ button to toggle between “Y” and “N” for Daylight

Saving Time. Press ENTER to go back the previous screen.

4.3.2. Set Up Observation Site

Scroll down and select “Set up Observ. site”

Set up Local Time

Set up Observ. site

Set N/S hemisphere

Set display contrast

Set Eyepiece light

Set Backlight

Set anti-backlash

Set Key Beep

Press ENTER. The longitude and latitude coordinates will be updated when the GPS picks up

satellite signals. “W/E” means west/east hemisphere; “N/S” means north/south hemisphere; “d” means

degree; “m” means minute; and “s” means second.

Set up site info:

Longitude:

W071d27m47s

Latitude:

N42d15m40s

300 Min. behind

If for any reason your GPS can’t pick up a signal you can manually enter the GPS coordinates.

Press ◄ or ► key to move the cursor and using ▲ or ▼ key to toggle between “W” and “E”, “N” and “S”,

using number key to change the numbers. It is always a good idea to do your home work to get the GPS

coordinates before traveling to a new observation site.

The site coordinates information can be found from Support section in iOptron website, under

Controller Set-up (http://www.ioptron.com/support.cfm?module=faq# ).By entering the city name or address,

you can find its latitude and longitude. In case you only find the site information in decimal format you can

convert them into d:m:s format by multiplying the decimal numbers by 60. For example, N47.53 can be

changed to N47º31'48”: 47.53º = 47º +0.53º, 0.53º=0.53x60'=31.8', 0.8'=0.8x60"=48". Therefore,

47.53º=47º31'48" or 47d31m48s.

Press ◄ or ► key, move the cursor to the bottom of the screen to set the time zone information (add

or subtract 60 minutes per time zone). Enter minutes “ahead of” or “behind” UT (universal time).

•

Boston is 300 minutes “behind” UT

Los Angeles is 480 minutes “behind” UT

Rome is 60 minutes “ahead of” UT

Beijing is 480 minutes “ahead of” UT

Sydney is 600 minutes “ahead of” UT

All the time zones in North America are behind UT, as shown in the following table. So make sure it

shows “behind” instead of “ahead of” UT.

Time Zone

Hawaii Alaska Pacific

Mountain Central

Eastern

Hour behind UT

Enter Minutes

-10

-9

-8

-7

-6

360

-5

300

600

540

480

420

To adjust minutes, move the cursor to each digit and use the number keys to input number directly.

To change the “behind” or “ahead of” UT, move the cursor to “ahead” and using ▲ or ▼ key to toggle

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between “behind” and “ahead”. When the number is correct, press ENTER and go back to the previous

screen.

For other parts of the world you can find your “time zone” information from iOptron website

(http://www.ioptron.com/support.cfm?module=faq#). DO NOT COUNT DAYLIGHT SAVING TIME.

The time and site information will be stored inside the HC memory chip. If you are not traveling to

another observation site, they do not need to be changed.

4.3.3. Set N/S Hemisphere

If the polar axis is aligned to North Celestial Pole, then set the mount to Northern Hemisphere. If the

polar axis is pointing to South Celestial pole, set the mount to Southern Hemisphere.

Set up Local Time

Set up Observ. site

Set N/S hemisphere

Set display contrast

Set Eyepiece light

Set Backlight

Set anti-backlash

Set Key Beep

Press Enter.

North hemisphere

South hemisphere

Select North Hemisphere if you are located in US and press ENTER to go back to the previous

screen.

4.3.4. Initial Star Alignment

A simple star alignment/synchronization can be performed to improve the GOTO accuracy.

To perform “One Star Align,” press MENU button, scroll down to “Align”, select “One Star Align”

and press ENTER. The screen will display a list of bright objects for you to select from. Select an object

using ▲ or ▼ key. Then press ENTER. After the mount slews to the target, use the arrow keys to center it

in your eyepiece. Then press ENTER. (More align details in 5.6)

An alternate way is to perform “Sync to Target.” Press the MENU button, select “Select and Slew”

and press ENTER. Browse over the catalogs and select an object, such as “Stars” Æ“Named stars” Æ140

(Polaris), and press ENTER. After the mount slews to Polaris, press the MENU button, scroll down to

“Sync. To Target”, follow the on-screen instruction to center Polaris and press ENTER. You may need to

use the number keys to change the slewing speed to make the centering procedure easier.

4.3.5. Go to the Moon

After performing these set-ups the mount is ready to GOTO and track objects. One of the most

common objects is the Moon.

To slew to the Moon press the MENU button. Select “Select and Slew” by pressing the ENTER

button. Select “Planets, Sun, Moon”, and use the ▲ or ▼ buttons to select Moon. Press ENTER. The

telescope will automatically slew to the Moon and lock on it. It will automatically begin to track once it locks

on. If the Moon is not centered in your eyepiece, use the arrow keys to center the Moon. Or for better

performance use “Sync to Target.”

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4.4. Turn Off the Mount

When you have finished your observation, it is recommended that you return the mount to Zero

Position before powering down. This will ensure that there is no need for you to perform the initial setup

again when you power up the mount subsequently, if the mount is not moved. To return the mount to its

Zero Position, press the MENU button, scroll down to “To Zero Position” and press ENTER. Once the

telescope returns to Zero Position turn the power off.

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5. Complete Functions of GoToNova^®Hand Controller

5.1. Slew to an Object

Press the MENU button. From the main menu select “Select and Slew.” Select an object that you

would like to observe and press the ENTER key.

The GoToNova 8406 hand controller has a database of about 580,000 objects. Use the ► or ◄

buttons to move the cursor. Use the number buttons to enter the number, or the ▼ or ▲ buttons to change

the individual number. The “ ” indicates the object is above the horizon, and a cross mark “ ” means it is

below the horizon. In some catalogs those stars below the horizon will not display on the hand controller.

5.1.1. Planets, Sun, Moon

There are 10 objects in the Solar system catalog.

5.1.2. Deep sky objects

This menu includes objects outside our Solar system such as galaxies, star clusters, quasars, and

nebulae.

•

Named deepsky objects: consists of 60 deep sky objects with their common names. A list of

named deep sky objects is included in Appendix E.

•

Messier Catalog: consists of all 110 Messier objects.

NGC IC Catalog: consists of 7,840 objects in NGC catalog and 5,386 objects in IC catalog. To

select an object from NGC or IC catalog, move the cursor to NGC, using▲ or ▼ button to toggle

between NGC and IC. Then move the cursor to a numerical position and use the number button

to select the object.

•

UGC Catalog: consists of 12,939 objects.

MCG Catalog: consists of 29,004 objects.

Caldwell Catalog: consists of 109 objects.

Abell Catalog: consists of 2,712 objects.

Herschel Catalog: consists of 400 objects.

5.1.3. Comets

This catalog contains 233 comets.

5.1.4. Asteroids

This catalog contains 231,665 asteroids.

5.1.5. Stars:

•

Named Stars: consists of 191 stars with their common names. They are listed alphabetically. A

list is included in Appendix E.

•

Double Stars: consists of 211 double stars. A list is attached in Appendix E.

GCVS Variable Stars: consists of 38,624 GCVS variable stars. They are listed numerically.

SAO Catalog: consists of 258,997 SAO catalog objects. They are listed numerically.

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5.1.6. Constellations

This catalog consists of 88 modern constellations with their names. They are listed alphabetically. A

list is attached in Appendix E.

5.1.7. Enter R.A. DEC

Here you can go to a target by entering its R.A. and DEC numbers.

5.2. Sync to Target

This operation will match the telescope's current coordinates to Target Right Ascension and

Declination. After slewing to an object, press MENU—then scroll to “Sync to Target” and press ENTER.

Follow the screen to do the sync. Using this function will re-calibrate the computer to the selected object.

Multiple syncs can be performed if needed. This operation is most useful to find a faint star or nebula near a

bright star.

“Sync to Target” will only work after “Select and Slew” is performed. Otherwise, the system may

perform incorrectly. You can change the slewing speed to make the centering procedure easier. Simply

press a number (1 through 9) to change the speed. The default slew speed is 64X.

“Sync to Target” does the same thing as one star alignment except that you choose the object to

“sync” to. “One star align” chooses the star/object for you. “Sync to Target” operation will override any

previously performed “Two Star Align” operation.

5.3. Electric Focuser

For future iOptron electric focuser use.

5.4. Set Up Controller

5.4.1. Set Up Local Time

Refer to 4.3.1.

5.4.2. Set Up Observation Site

Refer to 4.3.2.

5.4.3. Set N/S Hemisphere

Refer to 4.3.3.

5.4.4. Set Display Contrast

Use arrow keys to adjust LCD display contrast.

5.4.5. Set Eyepiece Light

If you have an illuminated-reticule eyepiece or illuminated polar scope, and it is supported by

GoToNova hand controller, use this option to adjust the light intensity.

5.4.6. Set Backlight

Adjust LCD and keypad backlight.

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5.4.7. Set Backlash Value

Set the backlash of R.A axis and DEC axis. Although both R.A. and DEC worms have gap-free

structure, there still might be backlash or play between the reducing gears of a R.A. or DEC motor.

To set the backlash value, scroll down and select “Set Backlash Value”

Set up Local Time

Set up Observ. site

Set N/S hemisphere

Set display contrast

Set Eyepiece light

Set Backlight

Set Backlash Value

Set Key Beep

Press ENTER. A R.A. anti-backlash screen will display:

R.A. anti-backlash:

0000

steps

To adjust steps move the cursor to each digit and use the number keys to input number directly. It is

about 0.10 arc seconds per step for R.A. backlash. Press ENTER – “DEC anti-backlash” will display:

DEC anti-backlash:

0000

steps

Move the cursor to each digit and use the number keys to set the anti-backlash. It is about 0.12 arc

seconds per step for DEC backlash. Press ENTER to go back the previous screen. Press BACK button to

go back to main menu.

While viewing an object in the eyepiece, observe the responsiveness of each of the four arrow

buttons. Note which directions you see a pause in the star movement after the button has been pressed.

Working one axis at a time, adjust the backlash settings high enough to cause immediate movement without

resulting in a pronounced jump when pressing or releasing the button. The hand controller will remember

these values and use them each time it is turned on until they are changed.

5.4.8. Set Key Beep

Turn the key beep on/off.

5.4.9. Reset All

Reset all settings to factory default data.

5.4.10. Meridian Protection

The Meridian Flip can be turn on or off. If the Meridian Flip is turned off, there are two more options:

Meridian Protection ON or OFF.

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If the Meridian Protection is turned on, the mount will stop tracking when it passes the meridian. If it

is turned off, the mount will keeping tracking and the OTA could hit the tripod leg if the mount is not

monitored.

5.4.11. Set Language

Select hand controller language from English or French.

5.4.12. Heating Controller

Turn on/off the controller internal heater.

5.4.13. Upgrade Firmware

Use this operation to upgrade 8406 hand controller firmware and iEQ75-GT main control board

firmware. Please refer to Appendix C. Firmware Upgrade for details.

5.4.14. Firmware Version

Will display hand controller firmware version.

5.4.15. Set Speed Limit

You can select the GOTO speed to be 128X, 256X, 512X, or MAX. The slower the speed, the

quieter the motors run.

5.5. Align

This function is used for aligning the telescope. The system provides two alignment methods: “One

Star Align” and “Two Star Align” The mount has to be at Zero Position before any star alignment.

5.5.1. One-Star Align

Press MENU button and select “Align”. Select “One Star Align” and press ENTER. A list of

alignment stars that are above the horizon is computed based on your local time and location. With the

mount at the “Zero Position,” use ▲ and ▼ buttons to select a star and press ENTER. Center the target in

your eyepiece using arrow key. Press ENTER when finished. If your mount is well set up and polar aligned,

one star alignment should be sufficient for good GOTO accuracy. To increase the accuracy you may

choose to do two star alignment.

5.5.2. Two-Star Align

Two star alignment will increase the GOTO accuracy of the mount. Two star alignment requires a

wider view of the sky, since the two align stars need to be far apart. Press MENU button and select “Align”.

Select “Two Star Align” in the align menu. A list of alignment stars that are above the horizon is computed

based on your local time and location. With the mount is at the “Zero Position,” use ▲ and ▼ buttons to

select first alignment star and press ENTER. Center the target in your eyepiece using arrow key. Press

ENTER when finished. The hand controller will prompt you to choose the second star. If the star you choose

is too close to the first one, the system will let you choose another one. When you are aligned with the

second star, the two star alignment is finished. You can reject the suggested star if it is blocked by a tree or

other obstruction.

After the two-star alignment, a pointing error between the R.A. axis and the polar axis will be

recorded. This number can be used to fine tune the R.A. axis.

“Two Star Align” results will be overridden if “One Star Align” or “Sync. to Target” is performed

after “Two Star Align.”

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5.5.3. Dis R.A axis error

This displays the celestial pole pointing error after two star or three star alignment. When the HC

shows for example:

7.5" lower

4.3" east,

it means the polar axis of the mount is pointing lower and to the east. Pointing error is zero when the mount

is powered on (unless you “Park Telescope” before powering off).

5.5.4. Polaris Position

This shows Polaris position in the polar scope and is used for Quick Polar Alignment.

5.6. PEC Option

iEQ75-GT uses automatic real time periodic error correction technique with a Renishaw high

resolution optical encoder.

5.7. Set Up Tracking

You can set up tracking in the main menu by selecting “Set up tracking”. Then the user can select

“Solar speed”, “Lunar speed”, “Sidereal speed” and “User defined speed”. For “User defined speed,” it

can be adjusted from 0.9900X to 1.0100X of sidereal speed by pressing the ▲or ▼ button or number

buttons.

5.8. Auto Guide

5.8.1. Set Guider Rate

This is an advanced function for autoguiding when a guiding camera is equipped either via an ST-4

guiding port or an ASCOM protocol. Before autoguiding, align the polar axis carefully. Press MENU and

select Auto Guide and press ENTER. Select a proper guiding speed. The suppositional guiding speed can

be selected from 0.10X to 1.00X. Follow the autoguiding software for detailed operation.

5.8.2. Set Guider Direction

The Guide Port iEQ75-GT equipped is capable to handle an ST-4 autoguiding camera with both

straight and a reverse wired RJ-11 guiding cable. Select “Reverse” option in the “Auto Guide” function for

an ST-4 camera with a reversed RJ-11 guiding cable, as shown in Figure 21.

Figure 21

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5.9. Park Scope

5.9.1. Park Scope

Park the mount to a preset parking position.

5.9.2. Set Park Position

There are 6 park positions to be chosen from, namely “Up north,” “Left zenith,” “Left horizontal,”

“Right zenith,” “Right horizontal,” and “Position now.” Different OTA may have different requirement for

parking. When the mount is powered off, the park position will be remembered. If you selected the park

position other than “Up north,” make sure you do a “One Star Align” before using GOTO for any object.

This procedure only needs to be done if you do not move your telescope mount after you power off

the mount. R.A. axis pointing error will be stored in flash memory and recalled when you power on again. If

the power is turned off before performing “Park Scope” operation, all the reference information will be lost.

5.10. To Zero Position

This moves your telescope to its Zero Position. When the power is turned on, the mount assumes

the Zero Position. This is its reference point for all other objects being tracked.

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6. Maintenance and Servicing

6.1. Maintenance

The iEQ75-GT is designed to be maintenance free. Do not overload the mount. Do not drop the

mount, this will damage the mount or degrade the GOTO tracking accuracy permanently. Use a wet cloth to

clean the mount and hand controller. Do not use solvent.

If your mount is not to be used for an extended period, dismount the OTAs and counterweight(s).

6.2. iOptron Customer Service

If you have any question concerning your iEQ75-GT contact iOptron Customer Service Department.

Customer Service hours are 9:00 AM to 5:00 PM, Eastern Time, Monday through Friday. In the unlikely

event that the iEQ75-GT requires factory servicing or repairing, write or call iOptron Customer Service

Department first to receive an RMA# before returning the mount to the factory. Please provide details as to

the nature of the problem as well as your name, address, e-mail address, purchase info and daytime

telephone number. We have found that most problems can be resolved by e-mails or telephone calls. So

please contact us first to avoid returning the mount for repair. It is strongly suggested that to send technical

questions to support@ioptron.com. Call in the U.S. 1.781.569.0200.

6.3. Product End of Life Disposal Instructions

This electronic product is subject to disposal and recycling regulations that vary by

country and region. It is your responsibility to recycle your electronic equipment per your local

environmental laws and regulations to ensure that it will be recycled in a manner that protects

human health and the environment. To find out where you can drop off your waste equipment

for recycling, please contact your local waste recycle/disposal service or the product

representative.

6.4. Battery Replacement and Disposal Instructions

Battery Disposal- Batteries contain chemicals that, if released, may affect the

environment and human health. Batteries should be collected separately for recycling, and

recycled at a local hazardous material disposal location adhering to your country and local

government regulations. To find out where you can drop off your waste battery for recycling,

please contact your local waste disposal service or the product representative.

May 2011 V1.0

iOptron reserves the rights to revise this instruction without notice. Actual color/contents/design may differ from those described in this instruction.

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Appendix A. Technical Specifications

Mount

Payload

Mount weight

German Equatorial Mount

75 lb (34kg)

52 lb (23.6kg)

Right Ascension worm wheel

Declination worm wheel

Right Ascension axis shaft

Declination axis shaft

Right Ascension bearing

Declination bearing

Worm gears

Φ182mm, 228 teeth bronze

Φ154mm, 192 teeth bronze

Φ60mm steel

Φ45mm steel

Φ90mm angular contact ball bearing

Φ68mm angular contact ball bearing

Φ15.6mm steel

Motor drive

Resolution

Planetary Gear Reducer DC servo with encoder

0.1 arc seconds

Latitude adjustment range

Azimuth adjustment range

GPS

15º ~ 70º

± 7.5º

Internal 32-channel GPS

Yes. (with dark field illumination)

2 arc minutes

Polar Scope

Accuracy

Hand Controller

GoToNova^®8406 with 580,000 objects database

Double closed-loop tracking with Renishaw high

resolution encoder feedback

± 1 arc second max

Tracking controller

Tracking error

PEC

Real-time automatic

Speed

Counterweight shaft

1×,2×,8×,16×,64×,128×,256×,512×,MAX(~4º/sec)

Φ31.8 mm (included)

16.5 lb (7.5kg) X 2 stainless steel (Φ150X52 mm,

included)

Counterweight

Base diameter

Φ200 mm

Mounting plate Black anodized aluminum (150X380mm, included)

Dovetail

Power consumption

Power requirement

USB port

3.5"VIXEN Saddles included

0.4A(Tracking), 1.2A(Slew)

12V DC(11 ~ 15V), 3Amp, center positive

Yes (on hand controller)

Yes (on control box)

RS232 port

Autoguide port

Yes (ST-4 compatible)

Firmware upgrade

PC computer control

Operation temperature

Yes (main board and hand controller)

Yes (ASCOM)

-20ºC ~ 40ºC

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Appendix B. GoToNova^®8406 HC MENU STRUCTURE

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Appendix C. Firmware Upgrade

The firmware in the 8406 hand controller and/or main control board can be upgraded by the customer.

Please check iOptron’s website, www.iOptron.com, under Support Directory, for the most up to date

firmware.

To upgrade i8406 hand controller firmware:

(1) Download the newest version of the 8406 hand controller firmware (i8406.iop) from iOptron’s

website, save it on your desktop;

(2) Connect 8406 hand controller to your computer’s USB port using included USB cable;

(3) Turn on the mount;

(4) Press MENU and select “Set Up Controller,” scroll down to “Upgrade Firmware.” A new

storage drive with a drive number, e.g. “IOPTRON(E:)”, will be shown under “My Computer.” If it

is the first time you have connected the hand controller to the computer, it may take few minutes

to install the driver.

(5) Copy the downloaded firmware, i8406.iop, into “sys” folder under IOPTRON(E:) drive to replace

the original one;

(6) Restart iEQ75-GT mount to finish the hand controller firmware upgrade.

To upgrade iEQ75-GT main control board firmware:

(1) Download iOptron Downloader Setup from iOptron’s website and save it on your desktop;

(2) Double click on iOptron Downloader Setup to install it;

(3) Download the newest version of iEQ75-GT main control board firmware (iEQ75-

GT_main_VX.XX.bin) from iOptron website, save it on your desktop;

(4) Connect iEQ75-GT RS232 port to your computer’s serial port using supplied RS-232 cable. A

USB to COM adapter is needed if you computer does not have a serial port, like most of the

laptops today;

(5) Turn on the mount;

(6) Find your COM port number by click on windows start, select Properties on My Computer,

click on Hardware and select Device Manager, double click on “Ports (COM & LPT).” In most

cases, it will be COM1. (If you are using a USB to RS-232 converting cable, the COM port

number will be different.)

(7) Double click on “iOptron Download” icon to start the program;

(8) Select the Serial Port, here is COM1. Open the data file, here is iEQ75-GT_main_VX.XX.bin.

Click on Start Download. After the program prompts that “Download successfully finished,”

restart the mount to finish main control board firmware upgrade.

Note: Only use the iEQ75-GT bin file. Sending a wrong file into the main control board will cause the

mount stop working.

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Appendix D. Use a PC to Control an iEQ75-GT Mount

The iEQ75-GT mount can be connected to a computer using supplied RS232 cable, if your PC is

equipped with a serial port. A RS232 to USB adapter is needed if your computer does not have a serial port,

like most of the laptops on the market today. Follow the adapter instructions to install the adapter driver.

When the communication between the mount and computer has been established, the mount can be

controlled via either ASCOM or RS485 protocol.

To control the mount via ASCOM protocol, you need:

1. Download and install ASCOM Platform from http://www.ascom-standards.org/. Make sure you

PC meet the software requirement, such as Microsoft .NET Framework 3.5 Service Pack 1 is

installed. Refer to the ascom-standards website for details.

2. Download and install latest iOptron Telescope ASCOM drive from iOptron website, click on

Support, select ASCOM Driver.

3. Planetarium software support ASCOM protocol. Follow software instructions to select the iOptron

Telescope.

Some companies have integrated iOptron’s products into their planetarium software, such as

Voyage and The Sky X Pro. Therefore, an ASCOM plug-in will not be needed. Most planetarium software

can be used to control iOptron’s product via ASCOM.

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Appendix E. GoToNova^®Star List

Messier Catalog

This table is licensed under the GNU Free Documentation License. It uses material from the Wikipedia

article List of Messier objects

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GoToNova Named Star List

for 8406

001 Acamar

002 Achernar

003 Acrux

004 Acubens

005 Adhafera

006 Adhara

007 Al Na’ir

008 Albali

009 Alberio

010 Alchibar

011 Alcor

012 Alcyone

013 Aldebaran

014 Alderamin

015 Alfirk

049 Ascella

097 Kaus Australis

098 Kaus Borealis

099 Kaus Media

100 Keid

101 Kitalpha

102 Kochab

103 Kornephoros

104 Kurhah

105 Lesath

106 Maia

107 Marfik

108 Markab

109 Matar

110 Mebsuta

111 Megrez

112 Meissa

113 Mekbuda

114 Menkalinan

115 Menkar

116 Menkent

117 Menkib

118 Merak

119 Merope

120 Mesartim

121 Miaplacidus

122 Mintaka

123 Mira

145 Rassalas

146 Rasagethi

147 Rasalhague

148 Rastaba

149 Regulus

150 Rigel

151 Rigel Kentaurus

152 Ruchbah

153 Rukbat

050 Asellus Australis

051 Asellus Borealis

052 Aspidiske

053 Atik

054 Atlas

055 Atria

056 Avoir

057 Azha

058 Baten Kaitos

059 Beid

060 Bellatrix

061 Betelgeuse

062 Biham

063 Canopus

064 Capella

065 Caph

154 Sabik

155 Sadachbia

156 Sadalbari

157 Sadalmelik

158 Sadalsuud

159 Sadr

160 Saiph

161 Scheat

162 Schedar

163 Seginus

164 Shaula

165 Sheiak

166 Sheratan

167 Sirius

168 Skat

169 Spica

170 Sterope

171 Sulafat

172 Syrma

016 Algedi

017 Algenib

018 Algiebra

019 Algol

020 Algorab

021 Alhena

022 Alioth

023 Alkaid

024 Alkalurops

025 Alkes

066 Castor

067 Celabrai

068 Celaeno

069 Chara

070 Chertan

071 Cor Caroli

072 Cursa

073 Dabih

074 Deneb

026 Almach

027 Alnasl

075 Deneb Algedi

076 Deneb Kaitos

077 Denebola

078 Dubhe

079 Edasich

080 Electra

081 Elnath

082 Eltanin

083 Enif

084 Errai

028 Alnilam

029 Alnitak

030 Alphard

031 Alphecca

032 Alpheratz

033 Alrakis

034 Alrescha

035 Alshain

036 Altair

124 Mirach

125 Mirfak

126 Mirzam

127 Mizar

128 Muphrid

129 Muscida

130 Nashira

131 Nekkar

132 Nihal

173 Talitha

174 Tania Australis

175 Tania Borealis

176 Tarazed

177 Taygeta

178 Thuban

179 Unukalhai

180 Vega

037 Altais

038 Alterf

085 Fomalhaut

086 Furud

133 Nunki

181 Vindemiatrix

182 Wasat

183 Wazn

184 Yed Posterior

185 Yed Prior

186 Zaniah

187 Zaurak

188 Zavijava

189 Zosma

190 Zubenelgenubi

191 Zubeneschamali

134 Nusakan

135 Peacock

136 Phact

137 Phecda

138 Pherkad

139 Pleione

039 Aludra

040 Alula Australis

041 Alula Borealis

042 Alya

043 Ancha

044 Ankaa

045 Antares

046 Arcturus

047 Arkab

087 Gacrux

088 Giausar

089 Gienah

090 Gomeisa

091 Graffias

092 Groombridge 1830 140 Polaris

093 Grumium

094 Hamal

095 Homan

096 Izar

141 Pollux

142 Porrima

143 Procyon

144 Propus

048 Arneb

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Modern Constellations

for 8406

Constellation

Abbreviation

Constellation

Abbreviation

No.

Andromeda

Antlia

Apus

Aquarius

Aquila

And

Ant

Aps

Aqr

Aql

Lacerta

Leo

Leo Minor

Lepus

Libra

Lupus

Lynx

Lyra

Mensa

Microscopium

Monoceros

Musca

Norma

Octans

Ophiuchus

Orion

Lac

Leo

LMi

Lep

Lib

Lup

Lyn

Lyr

Men

Mic

Mon

Mus

Nor

Oct

Oph

Ori

Pav

Peg

Per

Phe

Pic

Psc

PsA

Pup

Pyx

Ret

Sge

Sgr

Sco

Scl

Ara

Aries

Auriga

Boötes

Ara

Ari

Aur

Boo

Cae

Cam

Cnc

CVn

CMa

CMi

Cap

Car

Cas

Cen

Cep

Cet

Cha

Cir

Caelum

Camelopardalis

Cancer

Canes Venatici

Canis Major

Canis Minor

Capricornus

Carina

Cassiopeia

Centaurus

Cepheus

Cetus

Chamaeleon

Circinus

Columba

Coma Berenices

Corona Australis

Corona Borealis

Corvus

Pavo

Pegasus

Perseus

Phoenix

Pictor

Pisces

Piscis Austrinus

Puppis

Col

Com

CrA

CrB

Crv

Crt

Cru

Cyg

Del

Dor

Dra

Equ

Eri

Pyxis

Reticulum

Sagitta

Sagittarius

Scorpius

Sculptor

Scutum

Serpens

Sextans

Taurus

Crater

Crux

Cygnus

Delphinus

Dorado

Sct

Ser

Sex

Tau

Tel

Draco

Equuleus

Eridanus

Fornax

Gemini

Grus

Hercules

Horologium

Hydra

Hydrus

Indus

Telescopium

Triangulum

Triangulum Australe

Tucana

Tri

For

TrA

Tuc

UMa

UMi

Vel

Vir

Vol

Vul

Gem

Gru

Her

Hor

Hya

Hyi

Ursa Major

Ursa Minor

Vela

Virgo

Volans

Ind

Vulpecula

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GoToNova Deep Sky Object List

for 8406

ID No.

OBJECT

NGC # Messier# IC# A(Abell) U(UGC) ID No.

OBJECT

NGC # Messier#

IC#

A(Abell) U(UGC)

Andromeda Galaxy

Barnards Galaxy

Beehive Cluster

Blackeye Galaxy

224

Hind's Variable Nebula

Hubble's Variable Nebula 2261

Integral Sign Galaxy

1555

6822

2632

4926

3697

Jewel Box Cluster

Keyhole Nebula

Lagoon Nebula

Little Gem

4755

3372

6523

6445

6818

6369

7000

6618

1976

3587

Blinking Planetary Nebula 6826

Blue Flash Nebula

Blue Planetary

Blue Snowball Nebula

Box Nebula

Bubble Nebula

Bipolar Nebula

Butterfly Cluster

California Nebula

Cat's Eye Nebula

Cocoon Nebula

Cone Nebula

6905

3918

7662

6309

7635

6302

6405

1499

6543

Little Gem Nebula

Little Ghost Nebula

North American Nebula

Omega Nebula

Orion Nebula

Owl Nebula

Pelican Nebula

Phantom Streak Nebula

Pinwheel Galaxy

Pleiades

5070

5146

6741

598

2264

650-51

1952

Cork Nebula

Crab Nebula

Crescent Nebula

Draco Dwarf

Duck Nebula

Ring Nebula

6720

4038

2237

7009

6888

Ring Tail Galaxy

Rosette Nebula

Saturn Nebula

10822

2359

6853

Dumbbell Nebula

Eagle Nebula

Sextans B Dwarf

Small Magellanic Cloud

Sombrero Galaxy

Spindle Galaxy

Tank Track Nebula

Trifid Nebula

5373

9749

292

Eight-Burst Nebula

Eskimo Nebula

Flaming Star Nebula

Ghost of Jupiter

Great Cluster

3132

2392

4594

3115

2024

6514

104

405

3242

6205

7293

Ursa Minor Dwarf

Whirlpool Galaxy

Wild Duck Cluster

Helix Nebula

Hercules Galaxy Cluster

5194

6705

2151

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GoToNova Double Star List

For 8406

No. Object Const Sep.

Magitude

2.3 / 5.1

4.4 / 8.6

3.7 / 11

5.2 / 8.7

5.5 / 7.2

5.6 / 8.6

5.8 / 6.5

4.3 / 4.5

5.3 / 7.3

5.6 / 7.1

5.7 / 6.7

5.8 / 7.3

5.8 / 9.0

4.8 / 4.8

4.8 / 6.7

2.6 / 7.1

4.0 / 9.5

5.0 / 8.0

2.5 / 4.9

3.5 / 7.5

4.3 / 6.5

4.5 / 11

4.6 / 6.6

4.7 / 6.9

4.9 / 5.8

4.9/7.5/13

5.1 / 6.9

5.3 / 6.2

4.2 / 8.5

5.3 / 5.8

3.6 / 10

4.2 / 9.2

5.2 / 8.8

5.9 / 6.7

2.2 / 8.9

3.5 / 7.5

SAO

37734

54033

Comm. Name

No. Object Const Sep.

Magitude

SAO

Comm. Name

Gam

Bet

And

Aql

9.8

35.9

12.8

17.5

Almaak

37 Iot

38 Psi

39 Sig

40 E3053 Cas

41 3

42 Bet

43 Del

44 Xi

45 Kap

46 Omi

47 E2840 Cep

48 E2883 Cep

49 Gam

50 37

Cas

2.3

4.7/7.0/8.2 12298

4.7 / 8.9

5.0 / 7.1

5.9 / 7.3

4.5 / 6.0

3.2 / 7.9

3.5 / 7.5

4.3 / 6.2

4.4 / 8.4

4.9 / 7.1

5.5 / 7.3

5.6 / 7.6

5.0 / 7.7

5.2 / 8.7

5.7 / 7.5

1.5 / 7.4

4.4/10/11

4.8 / 6.8

5.0 / 7.0

5.8 / 8.5

4.2 / 6.6

4.3 / 12

5.1 / 6.2

5.0 / 6.6

11751

35947

10937

204916

10057

34508

19827

9665

20554

33819

19922

110707

129193

129752

172676

173446

173349

152123

151694

80416

98267

97646

100160

125235

104308

142996

104668

143898

146108

165625

190986

165867

145065

165321

92681

75051

58636

58502

57548

83500

64589

64686

100706

29046

101250

101139

29071

120426

45357

24054

2102

163427

163422

163592

Alshain

3.1

15.2

7.9

13.6

7.6

7.4

2.8

18.3

14.6

2.8

Cen

Cep

E2489 Aql

8.2

Alfirk

Zet

Aql

Aqr

Ari

2.1

12.7

5.1

6.6

2.5

23.7

7.8

37.8

3.6

5.4

2.8

105

108

4.8

13.4

6.6

5.6

Al kurhah

10 41

11 107

12 12

13 Tau

14 Gam

15 Lam

16 The

17 Nu

18 Ome

19 Eps

20 Del

21 Mu 1

22 Tau

23 Kap

24 Xi

Cet

Kaffaljidhma

Adhara

Mesartim

Ari

51 66

16.5

Aur

Boo

52 Eps

53 Tau

54 145

55 Mu

56 Nu 1

57 Iot

58 Alp

59 Zet

60 24

CMa 7.5

CMa 8.2

CMa 25.8

CMa 2.8

CMa 17.5

Izar

Alkalurops

Cnc

30.5

Acubens

Com 20.6

Com 1.2

Com 3.7

25 Pi

26 Iot

61 35

62 2

5.1/7.2/9.1 82550

5.9 / 7.4

5.0 / 6.0

4.1 / 9.6

3.0 / 9.2

2.9 / 5.5

5.0 / 6.9

5.8 / 8.1

2.2 / 9.5

2.9 / 6.3

3.1 / 5.1

3.8 / 6.7

82123

64833

156661

157323

63257

63648

44097

49528

48796

87301

49337

27 E1835 Boo

6.2

2.2

63 Zet

64 Gam

65 Del

66 Alp

67 25

CrB

Crt

Crv

CVn

Cyg

6.1

5.2

28 44

Boo

Cam 2.4

24.2

19.4

1.8

11.4

2.5

34.4

107

Algorab

Cor caroli

30 32

31 Alp 2

32 Alp 1

33 Pi

34 Omi

35 Alp

36 Eta

Cam 21.6

Cap

Cas

6.6

3.4

64.4

12.9

Secunda giedi

Prima giedi

68 2

69 Gam

70 Del

71 Bet

Sadr

163625

21609

21732

Shedir

Achird

Albireo

72 Omi 1 Cyg

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No. Object Const Sep.

Magitude

4.2 / 9.4

4.4 / 10

SAO

70467

Comm. Name

No. Object Const Sep.

Magitude

5.0 / 5.2

5.0 / 6.2

5.7 / 8.2

5.9 / 5.9

5.1 / 7.1

5.9 / 6.8

3.4 / 6.8

3.9 / 10

SAO

85647

101951

46147

Comm. Name

73 52

74 Ups

75 Mu

76 Psi

77 17

78 61

79 49

80 E2762 Cyg

81 E2741 Cyg

82 Gam

83 Eta

84 Eps

85 47

86 Nu

87 Psi

88 26

89 16&17 Dra

90 Mu Dra

91 40/41 Dra

Cyg

6.1

15.1

1.9

3.2

30.3

2.7

3.4

1.9

9.6

5.3

3.1

111 95

112 Kap

Her

6.3

71173

89940

32114

68827

70919

70362

70968

33034

106476

17074

9540

4.7 / 6.1

4.9 / 7.4

5.0 / 9.2

5.2 / 6.0

5.7 / 7.8

5.8 / 7.8

5.9 / 7.2

4.5 / 5.5

2.7 / 8.7

3.8 / 7.4

4.8 / 7.8

4.9 / 4.9

4.9 / 6.1

5.3 / 8.0

113 E2063 Her

16.4

14.3

8.6

10.1

2.7

29.4

9.4

28.4

114 100

115 54

Her

Hya

85753

182855

181790

117112

117527

179968

72155

72509

81298

99587

81583

170757

150223

150239

170352

159090

183040

158821

207208

207144

61391

116 HN69 Hya

117 Eps

118 The

119 N

120

Hyd

Lac

5.6 / 5.8

4.5 / 10

Del

Dra

121 8

5.7/6.5/10

2.2 / 3.5

4.0 / 6.7

4.3 / 6.3

3.7 / 6.3

4.4 / 10

4.5 / 7.4

5.4 / 6.6

4.5 / 9.4

5.7 / 8.0

5.8 / 6.7

3.6 / 7.8

5.3 / 5.8

3.9 / 6.6

Tyl

122 Gam 1 Leo

4.4

1.7

6.6

12.8

2.6

3.2

57.8

Algieba

31219

30450

8890

123 Iot

124 54

125 Gam

126 Iot

127 Kap

Leo

Lep

61.9

30.3

1.7

17546

5.4/5.5/6.4 30012

1.9

19.3

10.7

4.5

5.7

8.3

6.8

6.4

5.1

10.8

5.7 / 5.7

5.7 / 6.1

5.2 / 7.3

3.4 / 4.5

3.7 / 10

4.4/9.5/11

4.8 / 6.1

5.0 / 8.0

4.0 / 6.6

5.0 / 7.7

1.9 / 2.9

3.5 / 8.2

3.6 / 11

3.6 / 8.1

3.8/10/8.0

4.7 / 7.7

3.1 / 8.2

3.4 / 9.8

3.5 / 5.4

3.8 / 9.8

4.6 / 5.6

30239

8994

128 h3752 Lep

129 Iot

130

Lib

92 1

93 The

94 Tau 4 Eri

95 Omi 2 Eri

96 32

Equ

Eri

126428

216114

168460

131063

130806

149478

168373

167882

60198

79294

96746

79653

79031

96265

84951

85397

102680

102107

66001

Acamar

Keid

131 Mu

132 Eta

133 Xi

134 38

135 12

136 19

137 Bet

138 Zet

139 Eta

140 Eps

Lib

1.8

Lup

Lyn

Lyr

10.4

2.7

1.7

14.8

Eri

For

Gem 3.9

Gem 5.8

Gem 9.6

Gem 7.1

Gem 87

Gem 7.1

97 39

5.4/6.0/7.3 25939

98 Alp

99 Ome

100 Alp

101 Del

102 Lam

103 Kap

104 Zet

105 38

Fornacis

5.8 / 6.9

3.4 / 8.6

4.3 / 5.9

4.4 / 9.1

5.0 / 5.2

5.0 / 6.1

5.2 / 5.5

5.0 / 10

4.3 / 10

4.5 / 6.5

26312

67451

67321

68010

67310

67309

67315

212472

135551

113810

Sheliak

Castor

Wasat

28.1

208

2.6

2.3

20.5

13.4

7.3

2.8

4.5

Aldafar

Double dbl

Double dbl1

Double dbl2

141 Eps 1 Lyr

142 Eps 2 Lyr

Mekbuda

Sarin

143 Alp

144 Zet

145 Eps

146 Bet

147 15

148 70

Mic

106 Del

107 Mu

108 Alp

109 Gam

110 Rho

Her

8.9

4.6

Mon

Oph

Rasalgethi

4.7/4.8/6.1 133316

4.7 / 7.5

4.0 / 5.9

114258

123107

4.1

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No. Object Const Sep.

Magitude

4.0 / 8.6

4.2 / 5.2

4.4 / 9.0

5.1 / 5.1

5.2 / 5.9

5.3 / 6.0

5.4 / 6.9

0.1 / 6.8

2.2 / 6.3

2.8 / 6.9

3.6 / 5.5

SAO

123013

121658

185296

185198

142050

184382

185238

131907

132220

132323

112921

Comm. Name

No. Object Const Sep.

Magitude

2.6 / 4.9

2.9 / 8.5

4.2 / 6.1

4.7 / 7.4

5.4 / 6.9

5.9 / 6.9

5.9 / 7.9

3.7 / 9.0

4.2 / 5.2

4.3 / 8.5

4.5 / 5.4

5.3 / 7.6

5.0 / 8.8

3.2 / 7.8

5.2 / 6.9

5.0 / 8.4

5.7 / 7.6

5.8 / 6.6

5.3 / 6.9

2.4 / 4.0

3.5 / 9.9

3.6 / 8.9

3.8 / 11

4.3 / 4.8

4.8 / 8.2

5.4 / 5.4

2.0 / 9.0

3.5 / 3.5

4.4 / 9.4

4.8 / 9.3

5.7 / 7.9

SAO

159682

184336

159764

183896

207558

184369

184217

101725

101624

160479

124070

123497

105298

209957

209553

76558

76573

77201

55347

28737

62486

14908

27401

62484

Comm. Name

Graffias

149 67

150 Lam

151 Xi

Oph

Ori

181 Bet

182 Sig

183 Nu

184 2

Sco

Ser

Sge

Sgr

Tau

Tri

13.6

2.5

5.4

3.9

1.5

3.7

4.9

1.7

3.1

10.3

9.5

11.3

4.4

7.1

36.3

8.8

12.9

28.3

18.3

12.1

5.1

Marfic

Alniyat

Jabbah

152 36

153 Tau

154 Rho

155 39

156 Bet

157 Del

158 Iot

159 Lam

160 Sig

161 Rho

162 E747

163 1

185

186 Hn39

187 12

188 Bet

189 Del

190 Nu

191 The

192 59

193 Zet

194 Eta

195

Rigel

Mintaka

Nair al saif

Meissa

4.4

22.3

3.8

8.5

3.6

5.5

19.4

4.8

3.9

Alya

3.8/7.2/6.5 132406

Ori

4.5 / 8.3

4.8 / 5.7

4.1 / 8.2

2.9 / 8.1

2.9 / 9.5

3.3 / 8.5

4.1 / 10

5.3 / 6.7

4.2 / 9.2

4.3 / 11

4.4 / 7.9

4.5 / 8.0

5.8 / 6.8

4.2 / 5.2

5.4 / 8.7

5.6 / 5.8

5.6 / 6.5

4.5 / 4.7

5.8 / 5.9

5.4 / 8.6

112528

132298

107073

56840

56799

23655

Peg

Per

PsA

Psc

Pup

Scl

164 Eps

165 Zet

166 Eta

167 The

168 E331

169 Del

170 Iot

196 Phi

197 Chi

198 118

199 6

Atik

Miram in becvar

38288

23765

200 Zet

201 Nu

202 23

203 Ups

204 Xi

205 Sig 2

206 57

207 Alp

208 Gam

209 The

210 Phi

211 84

UMa 14

UMa 7.2

UMa 23

UMa 11.6

UMa 1.8

UMa 3.9

UMa 5.4

Mizar

Alula borealis

214189

213258

213883

214153

190822

110291

74182

171 Bet

172 Gam

173 Eta

174 Alp

175 55

176 Psi

177 Zet

178 Kap

179 Eta

180 Eps

30.3

4.2

1.7

1.8

6.5

Alula australia

14788

62572

308

138917

139189

139951

120082

Alrisha

UMi

Vir

18.4

1.4

7.1

4.8

2.9

Polaris

Porrima

74483

109739

174199

174019

167275

9.9

9.6

4.7

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IOPTRON TWO YEAR TELESCOPE, MOUNT, AND CONTROLLER WARRANTY

A. iOptron warrants your telescope, mount, or controller to be free from defects in materials and workmanship for two years. iOptron

will repair or replace such product or part which, upon inspection by iOptron, is found to be defective in materials or workmanship.

As a condition to the obligation of iOptron to repair or replace such product, the product must be returned to iOptron together with

proof-of-purchase satisfactory to iOptron.

B. The Proper Return Merchant Authorization Number must be obtained from iOptron in advance of return. Call iOptron at

1.781.569.0200 to receive the RMA number to be displayed on the outside of your shipping container.

All returns must be accompanied by a written statement stating the name, address, and daytime telephone number of the owner,

together with a brief description of any claimed defects. Parts or product for which replacement is made shall become the property

of iOptron.

The customer shall be responsible for all costs of transportation and insurance, both to and from the factory of iOptron, and shall be

required to prepay such costs.

iOptron shall use reasonable efforts to repair or replace any telescope, mount, or controller covered by this warranty within thirty

days of receipt. In the event repair or replacement shall require more than thirty days, iOptron shall notify the customer accordingly.

iOptron reserves the right to replace any product which has been discontinued from its product line with a new product of

comparable value and function.

This warranty shall be void and of no force of effect in the event a covered product has been modified in design or function, or

subjected to abuse, misuse, mishandling or unauthorized repair. Further, product malfunction or deterioration due to normal wear is

not covered by this warranty.

IOPTRON DISCLAIMS ANY WARRANTIES, EXPRESS OR IMPLIED, WHETHER OF MERCHANTABILITY OF FITNESS FOR A

PARTICULAR USE, EXCEPT AS EXPRESSLY SET FORTH HERE. THE SOLE OBLIGATION OF IOPTRON UNDER THIS

LIMITED WARRANTY SHALL BE TO REPAIR OR REPLACE THE COVERED PRODUCT, IN ACCORDANCE WITH THE TERMS

SET FORTH HERE. IOPTRON EXPRESSLY DISCLAIMS ANY LOST PROFITS, GENERAL, SPECIAL, INDIRECT OR

CONSEQUENTIAL DAMAGES WHICH MAY RESULT FROM BREACH OF ANY WARRANTY, OR ARISING OUT OF THE USE

OR INABILITY TO USE ANY IOPTRON PRODUCT. ANY WARRANTIES WHICH ARE IMPLIED AND WHICH CANNOT BE

DISCLAIMED SHALL BE LIMITED IN DURATION TO A TERM OF TWO YEARS FROM THE DATE OF ORIGINAL RETAIL

PURCHASE.

Some states do not allow the exclusion or limitation of incidental or consequential damages or limitation on how long an implied

warranty lasts, so the above limitations and exclusions may not apply to you.

This warranty gives you specific legal rights, and you may also have other rights which vary from state to state.

iOptron reserves the right to modify or discontinue, without prior notice to you, any model or style telescope.

If warranty problems arise, or if you need assistance in using your telescope, mount, or controller contact:

iOptron Corporation

Customer Service Department

6E Gill Street

Woburn, MA 01801

www.ioptron.com

support@ioptron.com

Tel. (781)569-0200

Fax. (781)935-2860

Monday-Friday 9AM-5PM EST

NOTE: This warranty is valid to U.S.A. and Canadian customers who have purchased this product from an authorized iOptron

dealer in the U.S.A. or Canada or directly from iOptron. Warranty outside the U.S.A. and Canada is valid only to customers who

purchased from an iOptron Distributor or Authorized iOptron Dealer in the specific country. Please contact them for any warranty

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