How to Perform a Two Star Alt/Az Alignment of Your Meade LX90 Schmidt-Cassegrain Telescope

The Alt/Az Alignment feature on your Meade LX90 Schmidt-Cassegrain Telescope allows you the option of choosing your own alignment stars from the auto database. Here’s how to use this option.

Instructions

Difficulty: Moderately Easy

1. You must first do the "Easy Align" procedure: Press the "Sun Warning" key prompted by Autostar to accept.
   
   
2. Select "Enter" to continue.
   
   
3. Enter in the current date. Press "Enter."
   
   
4. Enter in the current time, including AM or PM and press "Enter."
   
   
5. Select "Yes" or "No" for daylight savings time.
   
   
6. When the Alignment Option displays “Setup: Align,” press enter.
   
   
7. Select “Align: Easy.” Press "Enter."
   
   
8. Scroll to “Align: Two Star.” Press "Enter."
   
   
9. Place the telescope in the home position as follows: Loosen the "Dec" lock on the telescope. Afterward, level the tripod head and the optical tube by lining up 0° on the Dec setting circle with the Dec pointer. Tighten the Dec lock so that if feels firm. Unlock the "R.A." lock and turn the telescope horizontally so that it points North. Re-lock the R.A. and press "Enter."
   
   
10. Once you have done this you will see “Select Star” and the Autostar will display its database of stars that you can choose from. Choose a star on the list that you would like to align. Choose a star that you can easily locate and press "Enter."
    
    
11. The telescope will move to the star you selected. By using the arrow keys you can center the star in the eyepiece. Press "Enter."
    
    
12. For the second alignment star repeat the same procedure. Your telescope is now aligned and you can use the Autostar’s "Go To" capabilities.
    
    
    

Tips & Warnings

• When using this option, you will find that the Two-Star Alt/Az Alignment is more precise than the One-Star Alignment.

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