AstroGrav
AstroGrav
4.0

0.0

AstroGrav free download for Mac

AstroGrav

4.0
04 July 2019

Precision solar-system simulator/calculator with interactive 3D views.

Overview

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 Earth, multiple views animated simultaneously, dynamically calculated orbits and trajectories, comprehensive tabular data, and simulation time steps from a fraction of a second to thousands of years. Constellations and over 100,000 background stars are included, with comprehensive data for every star. Several different celestial coordinate grids and a wide range of physical units are available, and editing facilities allow you to create new objects manually, or import from hundreds of thousands of asteroids and comets.

Because it calculates the motions of bodies from their gravitational interactions, AstroGrav is not restricted to just the solar system. Any situation in which gravity is the only significant force can be simulated, and the illustrative sample files that are included with AstroGrav include many examples such as exoplanet systems, protoplanets that evolve into planetary systems, rubble piles and their interactions with massive bodies, complex star systems, and even projectiles and bouncing balls.

What's new in AstroGrav

Version 4.0:
Added:
  • Tens of millions of faint background stars to solar system simulations
  • Full printing facilities using new File / Print... and File / Page Setup... commands
  • The time zone to the status bar when the time unit is either universal time or local time
  • A new View / Trajectory Size... command for adjusting the length of the trajectories in a view window
  • Keyboard commands for adjusting the magnification, brightness, and appearance of objects while in full screen mode
Fixed:
  • Corrected a fault that sometimes caused the Window / Bring All to Front command to disappear from the Window menu
  • Various minor bug fixes and improvements

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3 AstroGrav Reviews

Rate this app:

planeten-paultje
13 September 2005

Most helpful

Tried it on a Tiger 17" PB, but it runs that machine completely into the ground. My 20" G5 iMac (latest model, requires Tiger) did not fare too much better. This may be the graphics problem under Tiger the author mentions. But everyone will end up with Tiger eventually, so if AstroGrav is going to be used on the Mac, its current problems will have to be tackled. I think its beta at the moment. I hope the problems will be resolved because the program looks very promising for educational work. So I won't rate it now but wait until I can use it.
Like
Version 1.2
Flavum
12 May 2014
I'm hoping a Mac old timer can help me here. In the early '90s I recall a free/shareware program that was a *very* simple take on this program. It was 2D and allowed you place celestial objects in proximity to each other, and assign them mass, direction, and velocity. You could create moons with various planetary orbits (circular or elliptical) and other gravity-affected motion. There were a few presets including a moon performing a figure-8 orbit around two nearby planets, amongst other things. Anyone remember this and its name? I've searched the old Info-Mac archives and come up empty. And thanks for taking the time to read this. =)
Like
Version 2.2.2
2 answer(s)
Chuckb84
Chuckb84
13 May 2014
That would be Gravitation. You can find it via googling "gravitation ltd". Not sure it'll run on OS X: http://www.old-games.com/download/3291/gravitation-ltd-
Like (2)
Flavum
Flavum
13 May 2014
Chuck - You're a star. Hey - a pun!
Like
Planetary-Paul
07 August 2012
Works cool on my UB MBP with Mountain Lion, except for one thing: Gate Keeper has to be turned off to use it. The AG website says it's a bug in 10.8. Come on guys!
Like
Version 2.0
1 answer(s)
Planetary-Paul
Planetary-Paul
28 December 2012
V 2.0.2 update fixed it, Thanks!
Like (1)
planeten-paultje
13 September 2005
Tried it on a Tiger 17" PB, but it runs that machine completely into the ground. My 20" G5 iMac (latest model, requires Tiger) did not fare too much better. This may be the graphics problem under Tiger the author mentions. But everyone will end up with Tiger eventually, so if AstroGrav is going to be used on the Mac, its current problems will have to be tackled. I think its beta at the moment. I hope the problems will be resolved because the program looks very promising for educational work. So I won't rate it now but wait until I can use it.
Like
Version 1.2
1 answer(s)
planeten-paultje
planeten-paultje
23 November 2005
Still the same situation on my PB. Dead slow. Hopefully the next version brings salvation, I really want to use this app......
Like
Version 1.2.2