Orion #10134 XT8g, 10135 XT10g, 10135XT12g Specifications, SkyQuest XT8g, SkyQuest XT10g

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12. Specifications

SkyQuest XT8g

Primary mirror: 203mm diameter, parabolic, center-marked

Focal length: 1200mm

Focal ratio: f/5.9

Focuser: Dual-speed Crayford (11:1), accepts 2" and 1.25" eyepieces with included adapter

Optical tube material: Rolled steel

Azimuth bearing: Thrust needle bearing

Altitude bearing: Ball bearing

Eyepieces: 28mm DeepView, 2" barrel, 12.5mm Illuminated Plössl, 1.25" barrel

Eyepiece magnifications: 42x and 96x

Finder scope: EZ Finder II Reflex Sight

Eyepiece rack: Holds three 1.25" eyepieces and one 2" eyepiece

Mirror coatings: Enhanced aluminum with SiO2 overcoat

Minor axis of secondary mirror: 47.0mm

Optical tube weight: 19.7 lbs.

Base weight: 38.5 lbs.

Tube length: 46.5"

Tube outer diameter: 9.25"

Motor drives: Dual-axis GoTo computerized, internally housed

Operation: Northern or Southern hemisphere

Power requirement: 12V DC 2.1 Amp (tip positive)

Motor type: DC servo with optical encoders for altitude and azimuth axes

Slew speeds: Rate 0 = 1.0X Rate 1 = 2X

Rate 2 = 16X

Rate 3 = 32X

Rate 4 = 50X

Rate 5 = 200X

Rate 6 = 400X

Rate 7 = 600X

Rate 8 = 800X

Rate 9 = 1000X

Tracking rates: Sidereal (default), Lunar, Solar.

Alignment method: Brightest Star, Two-Star

Database: Over 42,900 objects including:

Complete Messier & Caldwell catalogs, 7840 NGC objects, 5386 IC objects, 29523 SAO stars, 8 planets, moon, 212 named stars,

55 well-known double stars, 20 well-known variable stars, 25 user- defined objects.

SkyQuest XT10g

Primary mirror: 254mm diameter, parabolic, center-marked

Focal length: 1200mm

Focal ratio: f/4.7

Focuser: Dual-speed Crayford (11:1), accepts 2" and 1.25" eyepieces with included adapter

Optical tube material: Rolled steel

Azimuth bearing: Thrust needle bearing

Altitude bearing: Ball bearing

Eyepieces: 28mm DeepView, 2" barrel, 12.5mm Illuminated Plössl, 1.25" barrel

Eyepiece magnifications: 42x and 96x

Finder scope: EZ Finder II Reflex Sight

Eyepiece rack: Holds three 1.25" eyepieces and one 2" eyepiece

Mirror coatings: Enhanced aluminum with SiO2 overcoat

Minor axis of secondary mirror: 63.0mm

Optical tube weight: 29.4 lbs.

Base weight: 38.5 lbs.

Tube length: 47.25"

Tube outer diameter: 12.0"

Motor drives: Dual-axis GoTo computerized, internally housed

Operation: Northern or Southern hemisphere

Power requirement: 12V DC 2.1 Amp (tip positive)

Motor type: DC servo with optical encoders for altitude and azimuth axes

Slew speeds: Rate 0 = 1.0X Rate 1 = 2X

Rate 2 = 16X

Rate 3 = 32X

Rate 4 = 50X

Rate 5 = 200X

Rate 6 = 400X

Rate 7 = 600X

Rate 8 = 800X

Rate 9 = 1000X

Tracking rates: Sidereal (default), Lunar, Solar.

Alignment method: Brightest Star, Two-Star

Database: Over 42,900 objects including:

Complete Messier & Caldwell catalogs, 7840 NGC objects, 5386 IC objects, 29523 SAO stars, 8 planets, moon, 212 named stars,

55 well-known double stars, 20 well-known variable stars, 25 user- defined objects.

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Contents Orion SkyQuest XTg GoTo Dobsonians Overview of SkyQuest XTg Dobsonian 12 shown Unpacking Table of ContentsParts List Box #2 Dobsonian Base Refer to Figures 3 Base hardware for SkyQuest XTgAssembly Assembly of the Dobsonian BaseAssembly of the Optical Tube XT12g Only Shaft Spring EZ Finder Connecting the Optical Tube to Dobsonian BaseAccessory Installation Operating the EZ FinderAligning the EZ Finder Replacing the BatteryUsing Eyepieces GoTo Hand Controller Scroll Buttons Setup for AutoTracking or GoTo ModeSetup for AutoTracking or GoTo Mode Dual Purpose buttonsBrightest Star Alignment Using the Telescope AutoTracking ModeAlignment for GoTo Operation SW 235SE Two-Star AlignmentSelecting an Object Using the Telescope in GoTo ModeObject Database in the Hand Controller Pointing Accuracy Enhancement PAEOther Functions Utility FunctionsSetup Functions TrackingPage Recalling a user-defined object Using the User Defined DatabaseSaving an object to the database Identifying an Unknown ObjectLinking with a Computer Disconnecting from the ComputerPreparing the Computer for the Update Updating the GoTo Hand Controller’s FirmwarePreparing the Telescope for Collimating Collimating the Optical SystemCollimation Cap and Mirror Center Mark Aligning the Secondary MirrorFocusing the Telescope Using Your TelescopeStar-Testing the Telescope Aligning the Primary MirrorMagnification Viewing with EyeglassesAiming/Pointing the Telescope 1200mm = 42x 28mmAstronomical Observing Astronomical Objects MoonCleaning Mirrors Care and MaintenanceCleaning Eyepiece Lenses SkyQuest XT10g SpecificationsSkyQuest XT8g SkyQuest XT12g Menu Tree Appendix a Time Zones of the World Resetting the Position of Azimuth or Altitude Additional RS-232 Commands Sending a Tracking RateSending a Slow-GoTo Command Appendix B RS-232 ConnectionStar Charts Page Page Page Page Page Page Page Page One-Year Limited Warranty

10135 XT10g, 10134 XTBg, 10135XT12g, #10134 XT8g specifications

The Orion #10134 XT8g, #10135 XT12g, #10134 XTBg, and #10135 XT10g are exceptional choices in the realm of computerized telescopes, catering to both novice stargazers and seasoned astronomers. These models are designed for easy use while delivering stellar performance and high-quality optics.

At the heart of these telescopes is the high-quality optics that Orion is renowned for. Each model features a primary mirror made from durable glass, enhanced with a parabolic shape to minimize optical distortions and improve light gathering capabilities. The XT8g and XT10g utilize an 8-inch and 10-inch mirror, respectively, while the XT12g boasts a large 12-inch aperture, providing users with deeper views of celestial phenomena. The larger the aperture, the more light the telescope can collect, revealing fainter objects in the night sky.

In terms of technology, the "g" designation signifies that these telescopes are equipped with Orion’s innovative GoTo system. This advanced motorized mount enables users to easily locate and track celestial objects with the push of a button, making the stargazing experience more enjoyable and accessible. The system includes a database of thousands of celestial objects, allowing users to explore the universe with ease.

The XTg models also come with an intuitive hand controller that features a user-friendly interface for navigating the night sky. Additionally, the telescopes can be controlled via a smartphone or tablet, providing flexibility for tech-savvy users who prefer modern conveniences.

Durability and stability are crucial in any telescope, and the XT series does not disappoint. Each model is constructed on a robust and stable base, designed to minimize vibrations and provide a steady view, even at higher magnifications. This stability ensures that amateur astronomers can enjoy detailed views, from the craters of the moon to the rings of Saturn and beyond.

Each telescope comes with a cradle-style altazimuth mount for easier adjustments and tracking capabilities. The included eyepieces allow for various magnifications, enhancing the viewing experience and enabling observers to appreciate the beauty of the cosmos.

In summary, the Orion XT series, including the #10134 XT8g, #10135 XT12g, #10134 XTBg, and #10135 XT10g, stands out for their exceptional optics, innovative GoTo technology, robust build quality, and user-friendly operation. These telescopes are ideal for anyone wishing to explore the wonders of the night sky, making them a worthy investment for years of astronomical discovery.