and allows automatic slewing of the telescope to the user-entered coordinates. R.A (Right Ascension) and Dec. (Declination) are similar to latitude and longitude, except that they are used to find objects in sky.

In order to use this menu option, you first need to look up the R.A and Dec. coordinates of the object or objects you wish to observe. Check out your local library, computer store, bookstore, CD Roms, Internet, or magazines (such as Sky & Telescope or Astronomy), to find coordinates of celestial objects. The objects/coordinates you enter become part of your own permanent database, called "User Objects."

To enter coordinates of an object into the "User: Objects" option of the Object menu:

1.Make sure AutoStar has been initialized and the telescope has been aligned.

2.After the telescope is aligned, "Select Item: Object" displays. (If necessary, use the Scroll keys to scroll through the menus, as previously described, to find this option.) Press

ENTER.

3."Object: Solar System" displays. Keep pressing the Scroll Up key until "Object: User Object" displays and press ENTER.

4."User Object: Select" displays. Press the Scroll Down key once. "User Object: Add" dis- plays. Press ENTER.

5."Name" displays on the top line and a blinking cursor on the second line. Use the Arrow keys, as previously described, to enter the name of the object you wish to add to the data- base. When you are finished, press ENTER.

6."Right Asc.: 00.00.0" displays. Use the Up and Down Arrow keys to enter the digits for the Right Ascension coordinate of your object. When you are finished, press ENTER.

7."Declination: +00°.00'" displays. Use the Up and Down Arrow keys to enter the digits for the Declination coordinate of your object. If necessary, use the Scroll Keys to change "+" to "-." When you are finished, press ENTER.

8.AutoStar then prompts you to enter the size of the object. This step is optional. Use the Up and Down Arrow keys to enter the size (in arc-minutes), if so desired, and press ENTER to go to the next display. If you do not wish to enter this information, simply press ENTER.

9.AutoStar then prompts you to enter the magnitude of the object. This step is also optional. Use the Up and Down Arrow keys to enter this information, if so desired, and press ENTER to go to the next display. "User Object: Add" displays again.

To GO TO a user-entered object:

In this procedure, you will choose an object from the User Object list and GO TO the object.

1.With "User Object: Add" displayed, press the Scroll Up key once. "User Object: Select" displays. Press ENTER.

2.Use the Scroll keys (if necessary) to scroll to the desired object. Press ENTER.

3.The name of the object and the Right Ascension and Declination coordinates display.

4.Press GO TO and the telescope slews to the object.

Observing Satellites

In this procedure, you will prepare your telescope to observe a satellite pass.

1.Go to the "Object: Satellite" menu option and press ENTER.

2.Use the Scroll keys to scroll through the list of satellites.

3.Select a satellite from the list and press ENTER.

4."Calculating...." and then "Tracking..." displays. If the satellite is going to make a pass, "Located" displays.

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Meade DS-2102AT-TC, DS-2090AT-TC instruction manual Observing Satellites, To GO to a user-entered object
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DS-2090AT-TC, DS-2102AT-TC specifications

The Meade DS-2102AT-TC and DS-2090AT-TC are two innovative telescopes that cater to avid stargazers and aspiring astronomers alike. Designed with user-friendly features and robust optics, these telescopes offer a stellar viewing experience for both novice and experienced hobbyists.

The DS-2102AT-TC model boasts a 102mm aperture, providing a wider field of view that allows users to observe celestial objects with clarity and precision. This telescope utilizes a refractor design, which minimizes chromatic aberration and enhances image brightness. The combination of high-quality glass optics and a fully coated lens system ensures excellent light transmission, making it ideal for viewing planets, star clusters, and other astronomical phenomena.

One of the standout features of the DS-2102AT-TC is its AutoStar technology. This advanced computer-controlled system provides users with the ability to easily locate and track thousands of celestial objects. With a simple press of a button, the telescope automatically aligns itself to the night sky, allowing for hassle-free observation. This feature is particularly beneficial for beginners who may find it challenging to manually locate specific stars or planets.

The DS-2090AT-TC model incorporates a slightly different design, featuring a larger 90mm aperture and a similar refractor configuration. This telescope is also equipped with the AutoStar computer control system, enhancing the user experience by offering guided tours of the night sky. The DS-2090AT-TC excels in delivering bright and detailed views of deep-sky objects, making it a great option for those interested in exploring the wonders of the universe.

Both models are designed for portability, making them easy to transport to various observation sites. The sturdy mount and adjustable tripod provide stability and ease of use, ensuring that users can enjoy extended viewing sessions without fatigue. Additionally, these telescopes come with a variety of eyepieces, allowing for different magnification levels to suit the observer's preference.

In conclusion, the Meade DS-2102AT-TC and DS-2090AT-TC offer a compelling combination of advanced technology, user-friendly features, and high-quality optics. Whether you're a beginner eager to explore the night sky or a seasoned enthusiast seeking detailed celestial observations, these telescopes provide the tools you need to immerse yourself in the wonders of astronomy. With their reliable performance and impressive capabilities, the Meade DS series stands as a testament to the brand's commitment to making astronomy accessible and enjoyable for everyone.
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