AstroGrav is an astronomy software program that allows you to simulate how astronomical objects move and interact under the force of gravity. It features superb interactive 3D graphics which allow you to move around within a many-body astronomical system, 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 the astronomy 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. 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. AstroGrav 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 is available for both Mac and Windows, comes complete with a tutorial and full documentation, and you can download a fully functional 15 day trial version for evaluation.
Type :
Shareware ($59.00) »
EULAOS Support : Windows All + Vista
Date stamp / Size : Nov, 29. 2006 / 17780 kBytes
Asked : 1 GHz Intel Pentium III processor or better, Windows 2000 minimum, 256 MB RAM, 100 MB disk space
Update history of AstroGrav (Windows)v1.9.4 (December, 15. 2011)
Added the 'View/Show/Barycenter' and 'View/Show/Grayscale' commands. Made several improvements to the sample simulations. Corrected a fault that caused 'Evolve/Evolve To...' to evolve to the wrong time when the time step was changed during evolution. Various minor bug fixes and improvements.
v1.9.3 (November, 11. 2011)
Changed the 'Units' and 'Notes' windows so that they can be left open indefinitely. Made several improvements to the sample simulations. Corrected a fault that could cause the significant digits of position and speed quantities to get reduced to 4. Various minor bug fixes and improvements.
v1.9.2 (July, 13. 2011)
Added the display of a viewpoint's (x, y, z) coordinates to the status bar of a view window. Corrected a fault that could cause angles to be incorrectly formatted. Corrected a fault that prevented the 'File/Import...' and 'Edit/Paste' commands from working. Various minor bug fixes and improvements.
v1.9.1 (April, 21. 2011)
Corrected a serious fault that made version 1.9 unusable for a small proportion of users. Added the symbols for elements (a, e, i, omega, etc) to the appropriate windows. Added separators to the lists of units in popup menus to separate units into groups. Various minor bug fixes and improvements.
v1.9 (March, 27. 2011)
Made several corrections to minor faults in the evolution algorithm, and improved performance by about 15 percent. Made many improvements to the sample simulations. Made many improvements to the way units are handled. Corrected a fault with table sorting. Various minor bug fixes and improvements.
v1.8.4 (November, 5. 2010)
Many improvements to the sample simulations. Added a 'beep when finished' checkbox to the 'Evolve/Evolve To...' dialog. Corrected faults when displaying highly eccentric orbits. Improved the algorithm used to calculate the magnitude of a non-luminous body. Various minor bug fixes and improvements.
v1.8.3 (October, 12. 2010)
Changed the way that columns are shown and hidden in a table. Added a new sample simulation illustrating the system of exoplanets orbiting the star HD 10180. Corrected a fault that could cause AstroGrav to crash on computers with Intel Core i7 processors. Various minor bug fixes and improvements.
v1.8.2 (May, 21. 2010)
Greatly improved the way that orbits are calculated. Improved the handling of units by allowing the easy definition and use of a default selection of units. Made several improvements and corrections to the sample simulations. Various minor bug fixes and improvements.
v1.8.1 (December, 29. 2009)
Speeded up displays of table and view windows. Ensured that a tool palette remains on screen when its owning window is moved, resized, or maximized. Added recent discoveries to the Solar System sample simulations and changed their start date to 01/01/2010. Various minor bug fixes and improvements.
v1.8 (November, 4. 2009)
Added several new commands for manipulating model windows. Made improvements to the handling of date and time units. Made improvements to tool bars and added new tool palettes. Added new preferences for specifying the positions of tool bars and status bars. Various minor bug fixes and improvements.
Distribution permissions for AstroGrav (Windows)
You may redistribute an unregistered copy of the AstroGrav Software by any means (CDROM, cover disk, web site, etc) as long as you do not change the original package, and distribute only the original package.
