AstroGrav screenshot showing a view of the inner solar system

AstroGrav Astronomy Software

AstroGrav is an astronomical software program that allows you to simulate how astronomical objects move and interact under the force of gravity. It features superb interactive 3D visualizations that allow you to move around within a many-body astronomical system, while watching how it evolves with the passage of time.

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A wide variety of sample files are provided, including solar system, space mission, exoplanet, and abstract systems, and these enable you to experiment with the software without having to enter your own data. The comprehensive editing facilities allow you to either create your own astronomical systems, or to modify existing ones, and provide you with an almost endless scope for experimentation and investigation. Solar system simulations provide several special features, including the ability to easily import data from external web sites, giving a choice from hundreds of thousands of asteroids and comets.

Gravity Simulations

AstroGrav can be used to visualize and understand the following aspects of gravitational systems and astronomical systems.

  • Basic concepts of mass, position, velocity, acceleration, force, momentum, and energy.
  • Kepler's Laws of Planetary Motion and Newton's Law of Gravitation.
  • Many body systems and the n-body problem.
  • Orbits and Lagrange points.
  • Interchange of potential energy and kinetic energy in gravitational systems.
  • Projectiles and escape velocities.
  • Gravitational slingshots used in space missions.
  • The solar system and exoplanet systems.

Newton's Law of Gravitation

AstroGrav calculates how astronomical objects move according to Newton's Law of Gravitation, and displays the results as they are calculated so that you can watch the system evolve as in a movie. The software is very accurate, dynamically calculates orbits as a system evolves, deals correctly with object collisions, and can cope simultaneously with objects on many different timescales. AstroGrav also includes an option to use Einstein's General Theory of Relativity in situations where Newton's Law of Gravitation is inadequate.

Target Audience

AstroGrav is ideal for any of the following.

  • Astronomers and researchers interested in studying the evolution of gravitational systems.
  • Teachers and educationalists seeking to deliver courses on math, physics, or astronomy.
  • Students of math, physics, or astronomy.
  • Anyone else interested in studying how objects move and interact under the force of gravity.

Free Trial

AstroGrav is available for both Mac and Windows in the following languages:

  • Dutch flag Dutch
  • US flag English (International)
  • UK flag English (United Kingdom)
  • French flag French
  • German flag German
  • Italian flag Italian
  • Portuguese flag Portuguese
  • Spanish flag Spanish

The astronomical software comes complete with a tutorial and full documentation, and you can download a fully functional 15 day trial version for evaluation.

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