Freeware software
Freeware software
http://freeware.intrastar.net/astronomyone.htm
Overzicht software
Overzicht software
http://www.midnightkite.com/software.html
Planetarium software
Planetarium software
http://astro.nineplanets.org/astrosoftware.html
Stellarium
Stellarium is planetarium software that shows exactly what you see when you look up at the stars. it's easy to use, and free.
http://www.stellarium.org/