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 an website in the Education & Reference category. There are more than 25 alternatives to Planetarium, not only websites but also apps for a variety of platforms, including iPhone, iPad, Windows, Android and Android Tablet. The best alternative is Google Earth. It's not free, so if you're looking for a free alternative, you could try Stellarium or Celestia. Other great sites and apps similar to Planetarium are Sky Map (Free, Open Source), Gaia Sky (Free, Open Source), NASA World Wind (Free, Open Source) and KStars (Free, Open Source).
The Digital Universe Atlas incorporates data from dozens of organizations worldwide to create the most complete and accurate 3-D atlas of the Universe from the local solar neighbourhood out to the edge of the observable Universe.
Planisphere is an astronomy application that lets you use pinch and finger gestures to manipulate a map of the sky. As you zoom in finer detail comes into view. You can double tap on objects to get more information.
Distant Suns astronomy app is an award-winning hand-held planetarium with over 25 years of development, offering you the new way to look at the sky from on the Earth to off. Sporting over 130,000 stars, all 8 (or is it 9?
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.
Just hold up and point the device to the sky and have fun! You can see any stars, constellations and deep sky objects you are watching in real time. FEATURES - Augmented Reality Star Gazing with gyroscope! Just hold up the device.