Cost / License
- Pay once
- Proprietary
Platforms
- Android
- iPhone
- Android Tablet
- iPad




Planetarium is described as 'A browser-based virtual planetarium of stars and planets customizable by location (latitude and longitude) and time of day' and is a Star Map in the education & reference category. There are more than 50 alternatives to Planetarium, not only websites but also apps for a variety of platforms, including iPhone, iPad, Android, Windows and Android Tablet apps. The best Planetarium alternative is Google Earth. It's not free, so if you're looking for a free alternative, you could try Google Earth or Stellarium. Other great sites and apps similar to Planetarium are Sky Map, KStars, Gaia Sky and NASA World Wind.




Try out the solar system simulator to see the distance to Mars or other planets. Point your iPhone to the sky and explore the movement of the sun, moon, planets and stars across the sky while you change time by swiping the display.




The Sun's and Earth's rotation axes are both tilted with respect to the ecliptic, the plane of the Earth's orbit around the Sun.
