stars

3D visualization software for ESA's (European Space Agency) Gaia mission to chart about 1 billion stars of the Milky Way Galaxy.

Sky Map (formerly the Google Sky Map) turns your Android-powered mobile phone into a window on the night sky.

3D simulation of the Solar System and night sky - real time virtual orrery and observatory

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.

Displays the sky view at the correct orientation when held at any angle not just landscape or portrait. Simple operation, no buttons to press or modes to select, just point to the sky to start exploring.