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AstroGrav is a full-featured, high-precision solar-system simulator that calculates the gravitational interactions between all astronomical bodies, so that the motions of asteroids and comets are simulated much more accurately than with planetarium applications. The effects of general relativity and radiation pressure can be taken into account, and superb interactive 3D viewing allows you to easily rotate and zoom your view while the solar system evolves.

The AstroGrav software has a huge range of features and viewing options, including views from space or any object, planetarium-style views from any location on

What's New

Version 3.5.1:
  • Corrected a fault that could cause the evolution algorithm to misbehave in some simulations.
  • Corrected a fault that could cause the 'Evolve / Evolve To...' command to use one more time step than expected.
  • Changed the names of the background stars in solar system simulations to conform to the IAU Stellar Name Catalogue.
  • Displayed only first magnitude


  • OS X 10.7 or later
  • Intel Core 2 Duo, Core i3, Core i5, Core i7, or Xeon processor
  • 2 GB RAM
  • 500 MB available disk space (1 GB or more recommended)
  • 800 x 600 screen resolution (1024 x 768 or more recommended)

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AstroGrav User Discussion


Current Version (3.x)


Downloads 10,229
Version Downloads 91
License Shareware
Date 27 Dec 2017
Platform Intel 64 / OS X
Price $59.00
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