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Old 29-03-2007, 03:21 PM
adlsa5092
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adlsa5092 is offline
 
Join Date: Mar 2006
Location: Adelaide
Posts: 9
up-down, CW-CCW

Hey Leon,
"North, south, east and west, may God bless the bed on which I rest." just about sums up all the palaver about which way to adjust your scope!

Try this, it's simple and you really don't have to sweat ....

1. point your scope East as low to the horizon as you can get and pick a star you can see
2. centre the star in your FOV, say 12mm eyepiece
3. look for up or down drift; adjust your altitude -slowly - to bring star back to the centre horizontal line in FOV (imaginary if you don't have cross hairs)
4. keep doing 3 until the drift is minimal, say 5' over 15 minutes in time
5. find a star directly overhead close to the meridian and centre it
6. again, look for up or down drift - adjust your mounting horizontally (CW or CCW) - slowly - to bring star back to that horizontal centre line in FOV
7. keep doing 6 as for results in 4

You might have to do the above a couple of times and if you're using a diagonal, have the eyepiece pointing up to 12 o'clock relative to the OTA.

Unless you're an absolute purist, this will get you there - good enough to to do imaging up to a few minutes per shot.
cheers
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