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

A wide variety of sample files are provided, including Solar System, space mission, and abstract systems, and these enable you to experiment with AstroGrav without having to go to the trouble of entering your own data. The comprehensive editing facilities allow you to either create your own astronomical systems, or more...

What's New

Version 2.2.3:
  • Added the View / Show All / Data command to display the distances, speeds, magnitudes, and phases of objects in view windows.
  • Added the View / Show All / Nodes command to display the ascending nodes and descending nodes of objects in view windows.
  • Added the View / Show All / Apsides command to display the pericenters and apocenters of objects more...

Requirements

OS X 10.5 or later

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AstroGrav User Discussion

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Flavum Member IconComment+136
Flavum
+0

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. =)

Reply2 replies
Version 2.2.2
Chuckb84
+2

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-

Flavum
+0

Chuck - You're a star. Hey - a pun!

Planetary-Paul Member IconComment+11
Planetary-Paul
+0

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!

Reply1 reply
Version 2.0
Planetary-Paul
+1

V 2.0.2 update fixed it, Thanks!

Planeten.paultje@mac.com-Guhy Member IconComment+0
Planeten.paultje@mac.com-Guhy
+0

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.

Reply1 reply
Version 1.2
Planeten.paultje@mac.com-Guhy
+0

Still the same situation on my PB. Dead slow. Hopefully the next version brings salvation, I really want to use this app......

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Details

Downloads 8,818
Version Downloads 67
License Shareware
Date 11 Jun 2014
Platform Intel 64 / OS X / PPC 32 / Intel 32
Price $79.00
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