Sparkybb Looks like 0.76 x 0.53 sky degrees FOV , not enough ?
That should be ample.
However, you also have to do the following:
1) do not plate solve within 30 degrees of the pole. With the exception during polar alignment, ASIAIR has no database for polar stars. It can only do +/- 60º from the celestial Equator (i.e., declination between -60º and +60º).
2) do not overexpose. ASIAIR ignores overexposed stars. So, if you have enough overexposed stars, those stars will not be in the database search. Try to adust the gain and exposure so that you do not have more than a couple of saturated stars in the FOV.
3) do not underexpose. The ASIAIR will complain when there are not enough stars to work with.
4) make sure the focal length is correct. If you succeeded in plate solving during polar alignment, you should be OK.
5) focus as best you can. Use a Bahtinov mask.
6) make sure tracking is on.
Chen
