It`s excellent program, but I observed this:
1. Solar angular diameter possibly is not correct, because during total eclipses, moon is always smaller than sun. (I was watching eclipses at the ground at altitude 400-500 m, so it couldn't affect much).
2. Watch out for a star "eta Cas". This binary system is one of the closest to sun (distance 17,5 ly), but in Celestia it was >1000 ly. But spectra in info was right (roughly G0 V), but with a high luminousity, impossible for such main sequence star.