Stellarium: A Handy Desktop Planetarium
...n you can also take a look at the moon. In the pre-personal computer era I used to use a planisphere. I still have my 1980s era plastic planisphere. But the planisphere does not show the planets or moon. You’ve got to hunt down that info elsewhere. And my planisphere is so small that it’s hard to use. Thankfully, there’s a powerful, free open-source solution: Stellarium. Stellarium is a computer based planetarium that comes in OS X, Windows, Linux...