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Version 3.7.1 - 4th January 2019

Version 3.7.1 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 3.7.1 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 3.7.1 of AstroGrav has the following new and improved features.

Exporting Windows as Text

Version 3.7.1 of AstroGrav includes an improved Window / Export... command that makes the exported text file easy to use with either a text editor or spreadsheet software.

In the case of an exported table, the columns are separated by '|' characters. The number of characters in each column reflects what is visible on screen, which gives full control over the number of characters in each column. To view an exported table with a text editor or word processor, the output should be viewed using a monospaced font (such as Courier or Monaco) to see the columns correctly aligned. To view an exported table with a spreadsheet application (such as Microsoft Excel), the software needs to be told that columns are delimited by '|' characters.

Background Stars

Version 3.7.1 of AstroGrav includes the following improvements related to background stars in solar system simulations.

  • Background stars have had their radial velocities added. In earlier versions of AstroGrav, their radial velocities were always zero.
  • The Radial Velocity and Total Velocity have been added to a background star's information window.
  • 262 background stars have been added so that all the stars in the Hipparcos Catalogue are now present.

Sample Simulations

Version 3.7.1 of AstroGrav includes the following updates to the sample simulations.

  • 12 recently discovered moons of Jupiter have been added to the Solar System sample simulations.
  • The Solar System sample simulations have been updated to 01/01/2019.
  • The time units in the sample simulations have been changed from local time to universal time.

Other Improvements

Version 3.7.1 of AstroGrav also has many other minor improvements and bug fixes, including the following.

  • The MPC Comets import in the Edit / Import Objects... command has been improved so that a comet without an absolute magnitude (such as A/2018 V3) is assigned a default absolute magnitude of 15.0 instead of being rejected as invalid.
  • The display of angles with minutes or minutes and seconds has been improved to make better use of the space available in table columns.