Patrick, If I just want my telescope to point at a target to within say +/- 3 arc-min, which of the below are the most important to have set corretly in Skycharts. I've ranked these in what I suspect to be the highest to lowest importance. Can someone advise?
1. Epoch: Set this to 2000.0 or would this be set to whatever is closest to the current date; say 2008.5 ? 2. Equniox: Same as above 2000.0 or 2008.5 ? 3. Refraction: Patrick, It seems like I'd read that you leave this up to the scope controller to compensate for this one? 4. Nutation: No setting. This is just automatically compensated for in Sky charts V3.0 ? 5. Precession - is this automatically compensated for when Epoch and Equinox are set correctly? Any thing else I'm missing that I would have to setup in Skycharts V3? Since I'm just interested in +/- 3 arc-min I wouldn't be concerned with things like proper motion. Thanks, John Ott
