Orion #10134 XT8g, 10135 XT10g Using the User Defined Database, Saving an object to the database

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Figure 29. The three small thumbscrews that lock the primary mirror in place must first be loosened before any adjustments can be made.

Figure 30. The tilt of the primary mirror is adjusted by turning one or more of the three larger thumbscrews.

Using the User Defined Database

The GoTo system allows you to save up to 25 objects in the User Defined Database. You can save currently unknown objects, unidentifiable objects, current comet and/or aster- oid positions, or you can make a custom list of your favorite objects to view for quick access.

Saving an object to the database

1.Press the USER button (number 9) on the hand control- ler, or select “User Objects” under the Object Catalog menu. Press ENTER.

2.The first available selection in the User Objects is Recall Object. This is where you select previously saved objects to view. Use the scroll buttons to call up “Edit Object” and press ENTER.

3.User-defined objects are stored in two formats: RA-Dec and AzAlt. Press 1 for the RA-Dec format or 2 for AzAlt. The LCD will display the coordinates at which the tele- scope is currently pointed. In the case of the RA-Dec format, the coordinate readout will be similar to this: “22h46.1m + 90°00’ " , which means 22 hours and 46.1 minutes in R.A. (right ascension) and “+90°00'” in Dec (declination). Change the coordinates using the numeric keypad and scroll keys. Use the RIGHT or LEFT direc- tional keys to move the cursor to the next or previous digit. Press ENTER to save.

4.Warning: If the RA-Dec coordinates entered do not exist, the hand controller will not respond when the ENTER key is pressed. Check the entry for a mistake and re-enter the correct coordinates.

5.To store an object/location in Altazimuth (AzAlt) format, first point the telescope to the desired location to obtain the Altazimuth value, and then press ENTER to save.

6.After the coordinates have been saved, the LCD will dis- play a User Object number, such as # 03. Use the scroll

keys to change to the number you wish to represent the coordinates and press ENTER.

7.The prompt “View Object?” and the User Object number you just entered will be displayed. Press ENTER to go to the object or ESC to return to the Edit Coordinates menu.

Warning: The User Object number displayed may not be an unassigned one. If you are unsure which numbers have already been assigned, it is recommended that you first check for the available numbers by recalling the saved user-defined objects.

Recalling a user-defined object

1.See Step 1-2 of “Saving an object to the database” for details on how to access to the User Objects menu. Select Recall Object and press ENTER.

2.Use the scroll buttons to browse through the User Object numbers until the number representing the object you wish to view is displayed. Press ENTER to show its coordinates. Press ENTER again and you’ll see “View object?” Press ENTER to slew the telescope to the object. The hand control will not respond if an unassigned User Object number is selected. Use the scroll buttons to choose another number and try again.

Hint: If the recalled object is below the horizon, the hand con- troller will display “Below Horizon! Try another obj.” and auto- matically return to the Recall Object menu.

Identifying an “Unknown” Object

The GoTo system has the ability to identify an unknown (to you) celestial object that the telescope it pointing at. Here’s how:

1.Press the ID button or scroll to IDENTIFY in the main menu and press ENTER to identify the object.

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Contents Orion SkyQuest XTg GoTo Dobsonians Overview of SkyQuest XTg Dobsonian 12 shown Table of Contents Parts ListUnpacking 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 FinderReplacing the Battery Using EyepiecesAligning the EZ Finder GoTo Hand Controller Scroll Buttons Setup for AutoTracking or GoTo ModeSetup for AutoTracking or GoTo Mode Dual Purpose buttonsUsing the Telescope AutoTracking Mode Alignment for GoTo OperationBrightest Star Alignment 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 MoonCare and Maintenance Cleaning Eyepiece LensesCleaning Mirrors Specifications SkyQuest XT8gSkyQuest XT10g 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.
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