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Version 3.0.5 - 7th May 2015

Version 3.0.5 of AstroGrav is an upgrade containing a range of minor improvements and bug fixes. This information is intended for existing users who are already familiar with AstroGrav and want to quickly find out about the main changes. This is a free upgrade for customers who have already purchased an AstroGrav 2 or AstroGrav 3 license, so that all you need to do is download Version 3.0.5 and use it in place of your old version. If you have any problems with this new version, please don't hesitate to contact us so that we can help you out.

Version 3.0.5 of AstroGrav has the following new and improved features.

Evolution Improvements

Version 3.0.5 of AstroGrav includes the following improvements to the evolution algorithm.

  • The evolution algorithm has been made much more accurate in situations (such as exoplanet simulations) where there is a dominant object.
  • Evolution has been speeded up in many simulations, particularly those involving collisions.

Sample Simulations

Version 3.0.5 of AstroGrav includes improved solar system sample simulations that have more accurate masses for the main solar system objects. While the mass changes are only about one part in a million, this still results in more accurate simulations, particularly over longer time spans. It is recommended that these improved simulations are used in place of the old ones wherever possible.

Other Improvements

Version 3.0.5 of AstroGrav also has many other minor improvements and bug fixes, including the following.

  • The keyboard entry of dates and times in the Edit / Date/Time... and Evolve / Evolve To... commands has been made more flexible and less insistent on a particular format.
  • A bug has been fixed that caused an unwanted 'null' entry in the undo/redo chain when evolution was stopped before anything had changed.