Meade StarNavigator 90mm Instruction Manual - Page 20
Which One's the, Alignment Star?
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How to Easy Align Your Telescope If you have performed Initializing AudioStar as shown on page 16, continue to step 2. Otherwise, before proceeding, please perform the steps shown on page 16, Initalizing AudioStar. NOTE: For the Easy Align procedure to function properly, AudioStar must have the correct time, date and location of the observing site. If you have changed locations since your telescope was last used, or would like to change this information, see the Setup Menu on page 25 for more information. 1. Option Screen - AudioStar displays "Press 0 to Align or MODE fro Menu." Press "0" to begin the Easy Align procedure. 2. North Method -"North Method: 1=True 2=Compass" displays. Press the 1 key if you will be placing the telescope in the True North Home Position. Press the 2 key if you will be placing the telescope in the Magnetic North Home Position. See page 16 for more information on setting the telescope into the Home Position. 3. Set Alt/Az Home Position - Audiostar then prompts you to set the telescope in the Alt/Az Alignment home position. See SET ALT/AZ HOME POSITION, page 16. 4 Star Alignment - Audiostar then chooses two stars to align upon. When the telescope slews to the first star for alignment, it may not appear in the field of view in the eyepiece. The alignment star should be easily recognized and be the brightest star in the area of the sky where the telescope is pointing. Use the Arrow keys to move the telescope until the star is visible and centred in the eyepiece. Press ENTER. Repeat procedure for the second alignment star. When the procedure is performed correctly, "Alignment Successful" displays. If Audiostar does not display this message, perform this procedure again. NOTE: Audiostar locates alignment stars based on the date, time, and location entered. The alignment stars may change from night to night. All that is required is for the observer to centre the selected stars in the eyepiece when prompted. NOTE: The GO TO key also allows you to perform a "spiral search." A spiral search is useful when the telescope slews to an object, but that object is not visible in the eyepiece after the telescope finishes its search. (This sometimes occurs during an alignment procedure.) Press GO TO when the slew is finished and the telescope starts slewing in a spiral pattern at a very slow speed around the search area. Look through the eyepiece and when the object does become visible, press MODE to stop the spiral search. Then use the Arrow keys to centre the object. Which One's the Two other methods of alignment are available to the observer: Two-Star and One-Star. These methods are included in case the observer prefers to pick out his or her own alignment stars. Alignment Star? If Audiostar has chosen an alignment star with which you are unfamiliar, how can you be sure if the star in your eyepiece is really the alignment star? Two-Star Alt/Az Alignment Two-Star Alignment requires some knowledge of the night sky. Two-Star Alignment is identical to Easy: Align (see EASY (TWO-STAR) ALIGN, Pg. 17), except Audiostar displays a database of bright stars and two stars are chosen by the observer from this database for alignment. It is recommended that you choose stars with The rule of thumb is that an alignment star is usually the brightest star in that area of the sky. When you view an alignment star in an eyepiece, it stands out dramatically from the rest of the stars in that portion of the sky. If you have an obstruction, such as a tree or a building blocking your view of the alignment star, or if you have any doubts at all about the star that has been chosen, no problem. Just press the Scroll Down key and Audiostar will find another star to align upon. Looking at or near the Sun will cause irreversible damage to your eye. Do not point this telescope at or near the Sun. Do not look through the telescope as it is moving. 18
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