31 Jul
2015
31 Jul
'15
11:22 a.m.
Free planetarium software: I would recommend Stellarium. It is free and comes in 3 flavors (Windows, Mac, Linux). http://www.stellarium.org/ Clear skies!Bruce Hugo I gather a modern planetarium program will do the job, but I see that it would be used in an iterative manner as I suspected the calculations might be. There are probably many, but could you suggest an affordable one that is easy to learn and use? A free one would be nice as a learning tool even if it didn't have a lot of extra features. Thanks for your help and humorous mention of calculation accuracy as interpreted in the courts of the 1600's. Ed