Check that you have not misidentified a star used for an alignment. This would 

cause the pointing model to be inaccurate. 

For the first few   Additional Align   operations, make sure that the stars used are 

well spaced in RA, and are accurately centered prior to performing the 

  Additional Align.    

Avoid systematic errors when building a pointing model. Many star diagonals will 

de center stars when they are rotated relative to the OTA. Rotate the diagonal 

back to a consistent position before centering objects for alignment. 

For highest accuracy, use the Bright stars of the   Align Telescope   menu for 

alignments, since their positions are stored with the highest accuracy. 

Alternatively, use objects transferred from a PC in High Precision mode. 

If pointing at stars and deep sky objects is accurate, but solar system objects are 

significantly off, the UTC date or time setting may be wrong.  

7.1.8  Database Object Selection Problems 

If you cannot enter a single digit object identifier (e.g. you keep getting M40 

instead of M4), use the HC buttons to scroll to the 

 symbol to terminate data 

entry. 

7.1.9  Strange or Garbled Characters in Deluxe Hand Controller 

Display 

Try using the   Setup

Restore Defaults   menu item to reset the CMOS. Also 

check to see you have the latest EPROM software. 

7.1.10  Mount Takes Too Long to Center Object 

The object may be close to the east or west limit, where it will move the last few 

degrees in centering mode.  

7.1.11  Mount Continuously Beeps 

You have hit the east or west limit. Slew away from limit.  

If this happens immediately after start up, limits may be incorrectly set. Cold start 

the mount, and check the limits. Slew to the places where the limits should be and 

select   Setup

Mount Parameters

Set Safety Limit   for both the east and the 

west limits. 

7.1.12  Autoguider Calibration Problems 

 Be certain that you are in Photo Mode or All Speed Mode. The autoguider port 

will only work in these two modes. Make sure you have not left Gemini in Menu 

Mode, and that you are using a tracking rate that is appropriate for your 

observation.   

Make sure you have the correct cable to connect the autoguider to the Gemini. Be 

sure to use an Optocoupler unit or Relay Box  (with appropriate cable) if you have 

an autoguider without relays and an older Gemini (motor cables use RJ 45 

connector).   If your Gemini unit uses DIN connectors for the motors, you 

can

Gemini Users Manual 

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