Photography by NASA
A few weeks ago I found two simulators, the first one was Celestia, check the description below taken from its website:
The free space simulation that lets you explore our universe in three dimensions. Celestia runs on Windows, Linux, and Mac OS X.
So you can navigate from planet to planet, set the time and observe how the planets were positioned in the universe, you can also see how are they positioned now and how they will be in the future. You can watch the orbits, rotations, translations, comets, asteroids, spacecrafts, etc…
but then I found….
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.
That said, have you ever wonder
- Which planet is right there above our heads?
- Which are the names of the stars we see at night?
- Where to point your telescope to see saturn? mars? venus?
Then I guess this program will help you to find the response to this questions, and perhaps to question yourself new ones.
With Stellarium you can also set the current time and choose from where you are looking the sky, you can increase the speed of time, see how the stars move, etc.