(ATM) atm German mounting - one more try

Bjxrn Sxrheim (bjornso@powertech.no)
Wed, 9 Aug 1995 20:29:50 +0100

I try this again in light of the listserver problems last week: It's a question about german equatorial mounts:

I am currently finishing a german equatorial mount for a 12" telescope. I have planned to use it for some astrophotography when finished. I have little access to litterature on making such a mount.

The R.A. shaft will be joined to the Dec tube by welding (probably). I have a 45 cm (18") R.A. shaft. The problem is - how much deviation from the perpendicular is acceptable - considering it is to be used for astrophotography?

Is 1 mm at the end of the R.A. shaft too much/too strict? What value would be practical to go for (in mm or deg.)?

Clear skies, Bjørn bjornso@powertech.no(rway)