AstroGrav (Mac) 2.0.2
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.
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| Space | Solar System | Simulation | Science | Planetary Motion | Physics | Orbit | Newton | N-body | Math | Many-body | Kepler | Interactive | Gravity | Gravitational Slingshot | Exploration | Educational | Astrophysics | Astronomy | Animated |
History updates (Complete changelogs since the listing on this site)
2.0.2 [12-24-12]
Other versions : 2.0.1 2.0 1.9.4 1.9.3 1.9.2 1.9.1 1.9 1.8.4 1.8.3 1.8.2 1.8.1 1.8 1.7.2 1.7.1 1.7 1.6.2
v2.0.1 [11-12-12]
Improved the evolution algorithm to run faster on multi-processor and multi-core computers, correct a fault with the 'General Relativity' option, and improve collision handling. Corrected the display of background star names. Improved the sample simulations. Various minor bug fixes and improvements.
v2.0 [08-07-12]
Added a completely new evolution algorithm that is much more accurate than the evolution algorithm used in previous versions, and which contains several new settings. Added a large number of new commands, particularly in solar system simulations. Various minor bug fixes and improvements.
v1.9.4 [12-10-11]
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 [10-23-11]
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 [07-04-11]
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 [04-01-11]
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 [03-18-11]
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 [11-07-10]
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 [09-02-10]
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 [05-12-10]
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 [01-07-10]
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 [11-25-09]
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.
v1.7.2 [07-02-09]
Added a facility to save and restore family patterns in the 'Edit/New Family...' command. Added two new sample simulations. Corrected a fault that made selecting a large number of objects take too long. Corrected the 'Evolve/Run Backward' keyboard shortcut. Various minor bug fixes and improvements.
v1.7.1 [05-09-09]
Added an object's speed to its label when selected on a model window. Added an object's speed and magnitude to its information popup. Added a preview panel to the color chooser. Corrected a fault that could cause unwanted gaps in some lines on model windows. Various minor bug fixes and improvements.
v1.7 [02-24-09]
Added facilities for selecting multiple objects. Added commands to cut, copy, and paste selections. Improved the commands for deleting and merging objects. Simplified the addition of new objects. Added a new 'Type' field to the physical elements of objects. Various minor bug fixes and improvements.
v1.6.2 [09-12-08]
Improved the way that evolution is indicated on the status line. Corrected a fault that could cause part of an orbit to be drawn incorrectly. Corrected a fault in the calculation of object magnitudes. Significantly speeded up the drawing of model windows. Various minor bug fixes and improvements.
Predicted future versions and notices:
The doDownload.com constantly monitors the update of all programs, including information from the AstroGrav (Mac) 2.0.3 changelog file, however sometimes it can happen that data are not complete or are outdated.We assume that author continue's to develop 2.1.0 version with further advanced features, and soon you will be informed. Equally important 3.0.0 upgrades of the program we will continue to monitor. Full AstroGrav (Mac) description has been compared with the overall software database and our algorithm has found the following applications (are showed below).
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