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Thanks everyone for being so willing to help out.
OK, to answer all our questions in order:
- marki: It's a classic, so no GPS and no fancy daylight savings options!
- renormalised: I'm not sure whether "Lat and Long for Bondi, as is" means that longitude should be set as 151 degrees or 208 degrees...
- Paul: (1) I didn't time it (I wish I had!) but I would say a star would drift from the centre of a 12.5mm eyepiece to the edge in _about_ 15 minutes (very approximate). The FL of the scope from memory is 1280mm (2) It's not on a wedge and in alt/Az mode. (3) I believe the tracking is (or was) sidereal but I'll check.
- Roger: I remember seeing in the finder scope, the stars that had previously been aligned on the cross hairs had drifted to the right hand side, slightly lower down. Since the finder scope image is both upside down and back to front (I think), I guess this means the scope moved too far to the left (and up a tiny fraction).
- Brendan: I may be a bit of a novice, but the N/S was the first thing I thought to check. Unfortunately it was set on "S" :-)
- Space Oddity, This seems like a more fundamental problem than training the drive.
I'm pretty sure it was set on the sidereal tracking but I'll check, and I'll try to measur ethe exact direction and extent of the drift.
Unfortunatel yI don't have an I.R. eyepiece but I'll do my best.
Meantime can anyone confirm the question about longitude?
Thanks everyone. What a great bunch...!
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