Question about Optics
Ha, a familiar problem with Synscan and similar. You must do these things exactly right. Set up the hand controller properly for
- time (daylight saving or not)
- location, lat and long.
- hemisphere N or S
The mount must be
-levelled (don't trust the bubble on the mount, they are rubbish)
-pointed at the celestial pole (if an EQ mount)
-pointed due S or N (if alt-az)
You will find that most of the time a 2-star alignment is sufficient. Attempting a 3-star alignment is usually only successful if you have also taught the controller about geometry errors in the mount itself (they all have such errors), which is a tedious procedure you ought to leave until later. Even a 1-star alignment may be enough for planetary and lunar obs.
Don't neglect to use the "sync to object" feature it probably has in the hand controller. To use this you slew to an object using a medium to low power EP, activate the sync feature, center the object in the EP, and press enter. This has the effect of fine tuning the pointing accuracy in that segment of the sky.
Posted on Apr 14, 2015
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Posted on Jan 02, 2017
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