Celestron CGE1400, CGE925, CGE1100, CGE800 manual Auto Two-Star Align, Auto One-Star Align

(10)to scroll through the choices. Refer to Time Zone map in Appendix for more information.

•Date - Enter the month, day and year of your observing session.

•Finally, you must enter the longitude and latitude of the location of your observing site. Use the table in Appendix C to locate the closest longitude and latitude for your current observing location and enter those numbers when asked in the hand control, pressing ENTER after each entry. Remember to select "West" for longitudes in North America and "North" for latitudes in the North Hemisphere. For international cities, the correct hemisphere is indicated in the Appendix listings.

4.Select one of the four alignment methods as described below.

Observing

Tip

Auto Two-Star Align

Auto Two-Star Align allows the user to select two stars on which to align the telescope. To Auto Align your telescope:

1.Select Auto Two-Star from the alignment choices given. Based on the date and time information entered, the CGE will automatically select and display a bright star that is above the horizon.

•Press ENTER to select this star as your first alignment star.

•If for some reason the chosen star is not visible (perhaps behind a tree or building) press UNDO to have the hand control automatically select the next brightest star.

•Or you can use the Up/Down keys to browse the entire Named Star list and select any one of over two hundred alignment stars.

2.Once the telescope is finished slewing to your first alignment star, the display will ask you to use the arrow buttons to align the selected star with the cross hairs in the center of the finderscope. When centered in the finder, press

ENTER.

3.The display will then instruct you to center the star in the field of view of the eyepiece. When the star is centered, press ALIGN to accept this star as your first alignment star.

4.After the first alignment star has been entered the CGE will automatically select a second alignment star and have you repeat this procedure for that star. When the telescope has been aligned on both stars the display will read Alignment Successful, and you are now ready to find your first object.

	Figure 3-2
For the best possible pointing accuracy, always center the alignment	The Meridian is an imaginary line in the sky
stars using the up arrow button and the right arrow button.	that starts at the North celestial pole and
	ends at the South celestial pole and passes
Approaching the star from this direction when looking through the
	through the zenith. If you are facing South,
eyepiece will eliminate much of the backlash between the gears and	the meridian starts from your Southern
assure the most accurate alignment possible.	horizon and passes directly overhead to the
	North celestial pole.

Auto One-Star Align

Auto One-Star Alignment works much the same way as Auto Two-Star Align but uses only a single star in the sky for alignment. This method of alignment is not as accurate as the two-star alignment and is recommended only for telescopes that are permanently and accurately polar aligned.

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