I found a program although it's not any type of cleansing, optimizing, etc software but It's pretty cool and free. Even better they have downloads for Linux and Mac OS X as well as Windows.
(It's only been a few hours since I installed it but it didn't install any extra software and so far nothing has popped up asking to buy a full version or anything else like that)
Stellarium
Stellarium is a free open source planetarium for your computer. It shows a realistic sky in 3D, just like what you see with the naked eye, binoculars or a telescope.
It is being used in planetarium projectors. Just set your coordinates and go.
Just click whichever OS you have and download...
http://stellarium.sourceforge.net/
(It's only been a few hours since I installed it but it didn't install any extra software and so far nothing has popped up asking to buy a full version or anything else like that)
Stellarium
Stellarium is a free open source planetarium for your computer. It shows a realistic sky in 3D, just like what you see with the naked eye, binoculars or a telescope.
It is being used in planetarium projectors. Just set your coordinates and go.
Just click whichever OS you have and download...
http://stellarium.sourceforge.net/