Orion EQ-G Technical Specifications, #7795 Dual-Axis hand controller, #7796 GoTo hand controller

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9. Technical Specifications

Mount:

German equatorial

Tripod:

Steel

Weight:

54lbs.

Counterweights:

Quantity 2, 11 lbs. each

Polar axis latitude adjustment:

10° to 65°

Polar axis finder scope:

Included, illuminator built

 

into mount

Motor drives:

Dual-axis, GoTo comput-

 

erized, internally housed

Operation:

Northern or Southern

 

hemisphere

Power requirement:

12V DC, 2A (tip positive)

Motor type and resolution:

Microstep driven 1.8°

 

stepper motors

Resolution:

0.144 arc sec (or

 

9,024,000 steps/rev)

Gear ratio:

705

#7795 Dual-Axis hand controller

 

Slew speeds:

Guiding speed

 

4x

 

8x

 

32x

 

64x

 

800x

Guiding speeds:

2x / 1.75x / 1.5x / 1.25x

 

sidereal rate

Tracking rates:

sidereal, lunar, solar

Tracking mode:

R.A. tracking

#7796 GoTo hand controller

 

Slew speeds:

Rate 0 = 1.5x

 

Rate 1 = 2x

 

Rate 2 = 8x

 

Rate 3 = 16x

 

Rate 4 = 32x

 

Rate 5 = 64x

 

Rate 6 = 400x

 

Rate 7 = 500x

 

Rate 8 = 600x

 

Rate 9 = 800x (3.4°/sec)

Autoguiding rates:

2x / 1.75x / 1.5x / 1.25x

 

sidereal rate

Tracking rates:

Sidereal (default), lunar,

 

solar, PEC + sidereal

Tracking modes:

R.A. tracking

Alignment method:

One-star alignment, two-

 

star alignment, three-star

 

alignment

Database:

25 user-defined objects,

 

complete M, NGC, and IC

 

catalogs.

 

Total 13,436 objects

Pointing accuracy:

Up to 1 arcminute with

 

cone error calibration, up

 

to 15 arcminutes without

 

cone error calibration.

This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device nay not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.

Changes of modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment.

Note: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reason­able­ protection against harmful interference in a resi- dential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interfer- ence to radio communications. However, there is no guarantee that interference will no occur in a particular installation. If this equipment does cause harmful interference to radio or televi- sion reception, which can be determined by turning the equip- ment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

-Reorient or relocate the receiving antenna.

-Increase the separation between the equipment and receiver.

-Connect the equipment into an output on a circuit different from that to which the receiver in connected.

-Consult the dealer or an experienced radio/TV technician for help.

A shielded cable must be used when connecting a peripheral to the serial ports.

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Contents #9996 Orion Atlas EQ-GPage Unpacking Table of ContentsAssembly Parts ListBalancing a Telescope Attaching a TelescopeTurns, until you can slide the telescope tube forward Setting Up and Using the Equatorial MountPolar Axis Finder Scope Polar AlignmentAlignment of the Polar Axis Finder Scope Confused About Pointing the Telescope? Using the Polar Axis Finder ScopeAtlas EQ-G Dual-Axis Controller Atlas EQ-G Dual-Axis hand controller Setting the Slewing SpeedAtlas EQ-G GoTo Hand Controller Attaching the GoTo Hand Controller Installing the hand controller bracketGoTo Hand Controller Operation Telescope and mount in their home position AlignmentTips for Choosing Alignment Stars Three-Star AlignmentTwo-Star Alignment One-Star AlignmentShortcut Buttons Object CatalogPointing Accuracy Enhancement PAE Selecting an ObjectOther Functions Auto Guiding Recalling a User Defined ObjectIdentifying an Unknown Object Linking with a ComputerUpdating the GoTo Hand Controller Preparing the Computer for the Update#7795 Dual-Axis hand controller Technical Specifications#7796 GoTo hand controller Atlas EQ-G GoTo Hand Controller Menu Tree Appendix a Enhancing the Pointing Accuracy Cone Error CalibrationTesting for Cone Error Calibration ProcedureB.Rotate the telescope 180 about the R.A.axis PEC Training Appendix B Periodic Error Correction PECPlay Back the PEC Record Appendix C RS-232 Connection Additional RS-232 Commands Sending a Tracking RateSending a Slow-GoTo Command Resetting the Position of Azimuth or AltitudeAppendix D Standard Time Zones of the World One-Year Limited Warranty

EQ-G specifications

The Orion EQ-G Equatorial Mount is a popular choice among amateur astronomers and astrophotographers seeking a reliable and versatile platform for their telescopes. Known for its robust build and advanced technology, the EQ-G mount can support a wide range of telescope sizes, making it ideal for both visual observations and astrophotography.

One of the standout features of the Orion EQ-G is its precision go-to capability. Equipped with a computer-controlled system, users can easily locate and track celestial objects with remarkable accuracy. The mount comes with a database that includes thousands of celestial objects, allowing users to automatically point their telescope to stars, planets, galaxies, and more with the push of a button.

The EQ-G mount features a sturdy aluminum construction, ensuring stability even under heavy loads. It can support telescopes weighing up to 30 lbs, making it suitable for medium to large telescopes. The mount's adjustable altitude and azimuth motions allow for smooth tracking of celestial objects as they move across the sky, a vital characteristic for long-exposure astrophotography.

To enhance user experience, the EQ-G is equipped with a built-in dual-axis servo motor drive system. This drive system delivers precise movement control, ensuring that the telescope can be accurately guided to desired targets. Furthermore, the mount is compatible with various control options, including hand controllers and computer software, allowing for a customizable and convenient observing experience.

Another notable technology within the EQ-G is the polar alignment scope. This feature aids in achieving accurate polar alignment, which is crucial for minimizing tracking errors during long exposures. By correctly aligning the mount, users can take stunning astrophotographs with minimal star trails.

For portability, the EQ-G mount comes with a quick-release design that allows for easy setup and takedown. Its adjustable tripod legs provide a stable base on various terrains, making it possible to observe from different locations, whether in the backyard or at a remote dark-sky site.

In summary, the Orion EQ-G Equatorial Mount combines an intuitive design with high-quality features, making it a fantastic choice for astronomy enthusiasts. With its go-to capability, sturdy construction, precise tracking, and user-friendly setup, the EQ-G stands out as a reliable and effective tool for exploring the wonders of the night sky. Whether you are capturing stunning images of celestial objects or simply enjoying visual astronomy, the Orion EQ-G meets the diverse needs of astronomers at all levels.