StarCalc Alternatives

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.

Celestia is an application for real-time 3D visualization of space, with a detailed model of the solar system, over 100,000 stars, more than 10,000 galaxies, and an extension mechanism for adding more objects.

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

Gaia Sky is a real-time, 3D, astronomy visualisation software that runs on Windows, Linux and OS X.

KStars is a Desktop Planetarium for KDE. It provides an accurate graphical simulation of the night sky, from any location on Earth, at any date and time.

A window to the stars has never been more beautiful and easy to use. Sky Guide lets you experience the wonders of the night in ways you’ve only dreamed of.

Maximize the use of your Excel spreadsheet data. Make mapping the easiest. Transform Excel data into visual analysis. We lead in data simplification and presentation. We are committed to deliver the tools needed to outpace competition.

This program enables you to draw sky charts, making use of the data in 16 catalogs of stars and nebulae. In addition the position of planets, asteroids and comets are shown.

Mitaka is software for visualizing the known Universe with up-to-date observational data and theoretical models. Mitaka users can seamlessly navigate through space, from the Earth to the edges of the known Universe.

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