One-Star Align, Solar System Align | Celestron StarSeeker specification

4.StarSeeker then asks you to center in the eyepiece the alignment star you selected. Use the direction arrow but- tons to slew the telescope to the alignment star and care- fully center the star in the finderscope. Press ENTER when centered.

5.Then, center the star in the eyepiece and press ALIGN.

HELPFUL HINT: In order to accurately center the alignment star in the eyepiece, you may wish to decrease the slew rate of the motors for fine centering. This is done by pressing the RATE key (11) on the hand controller then selecting the num- ber that corresponds to the speed you desire. (9 = fastest , 1 = slowest).

6.StarSeeker will then ask you to select and center a sec- ond alignment star and press the ALIGN key. It is best to choose alignment stars that are a good distance away from one another. Stars that are at least 40° to 60° apart from each other will give you a more accurate alignment than stars that are close to each other.

Once the second star alignment is completed properly, the display will read Align Successful, and you should hear the tracking motors turn-on and begin to track.

One-Star Align

One-Star Align requires you to input all the same informa- tion as you would for the Two-Star Align procedure. However, instead of slewing to two alignment stars for centering and alignment, the StarSeeker uses only one star to model the sky based on the information given. This will allow you to roughly slew to the coordinates of bright objects like the moon and planets and gives the StarSeeker the information needed to track objects in altazimuth in any part of the sky. One-Star Align is not meant to be used to accurately locate small or faint deep-sky objects or to track objects accurately for pho- tography.

To use One-Star Align:

1.Select One-Star Align from the alignment options.

2.Press ENTER to accept the time/site information displayed on the display, or press UNDO to enter new information.

3.The SELECT STAR 1 message will appear in the top row of the display. Use the Up and Down scroll keys (10) to select the star you wish to use for the first alignment star. Press ENTER.

5.Then, center the star in the eyepiece and press ALIGN.

6.Once in position, the StarSeeker will model the sky based on this information and display Align Successful.

Note: Once a One-Star Alignment has been done, you can use the Re-alignment feature (later in this section ) to improve your telescope’s pointing accuracy.

Solar System Align

Solar System Align is designed to provide excellent tracking and GoTo performance by using solar system objects (Sun, Moon and planets) to align the telescope with the sky. Solar System Align is a great way to align your telescope for day- time viewing as well as a quick way to align the telescope for night time observing.

Never look directly at the sun with the naked eye or with a telescope (unless you have the proper solar filter). Permanent and irreversible eye damage may result.

1.Select Solar System Align from the alignment options.

2.Press ENTER to accept the time/site information displayed on the display, or press UNDO to enter new information.

3.The SELECT OBJECT message will appear in the top row of the display. Use the Up and Down scroll keys (10) to select the daytime object (planet, moon or sun) you wish to align. Press ENTER.

4.StarSeeker then asks you to center in the eyepiece the alignment object you selected. Use the direction arrow buttons to slew the telescope to the alignment object and carefully center it in the finderscope. Press ENTER when centered.

5.Then, center the object in the eyepiece and press ALIGN.

Once in position, the StarSeeker will model the sky based on this information and display Align Successful.

Tips for Using Solar System Align

•For safety purposes, the Sun will not be displayed in any of the hand control’s customer object lists unless it is enabled from the Utilities Menu. To allow the Sun to be displayed on the hand control, do the following:

1.Press the UNDO button until the display reads NexStar GT.

2.Press the MENU button and use the Up and Down keys to select the Utilities menu. Press ENTER.

3.Use the UP and Down keys to select Sun Menu and press

ENTER.

4.Press ENTER again to allow the Sun to appear on the hand control display.

The Sun can be removed from the display by using the same procedure as above.

To improve the telescope pointing accuracy, you can use the Re-Align feature as described below.

StarSeeker Re-Alignment

The StarSeeker has a re-alignment feature which allows you to replace either of the original alignment stars with a new star or celestial object. This can be useful in several situations:

•If you are observing over a period of a few hours, you may notice that your original two alignment stars have drifted towards the west considerably. (Remember that the stars are moving at a rate of 15° every hour). Aligning on a new star that is in the eastern part of the sky will improve your pointing accuracy, especially on objects in that part