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AA+ v1.70

April 10, 2016

Just to let everyone know that v1.70 of AA+ has been released. Updates for this version include:

  • Fixed a bug in the GetSunRiseTransitSet function in the AATest.cpp module where it incorrectly used Terrestrial Time instead of UTC. The error in the rise / transit / set times was roughly the difference between TT and UTC at the time of calculation. For the examples in AATest.cpp which corresponded to October 2010, DeltaT was 67 seconds. A spot check of the AA+ code against SkyMap now shows both return the same times accurate to the minute. Thanks to "Pavel" for reporting this issue.
  • Fixed a bug in the GetMoonRiseTransitSet function in the AATest.cpp module where it incorrectly used Terrestrial Time instead of UTC. The error in the rise / transit / set times was roughly the difference between TT and UTC at the time of calculation. For the examples in AATest.cpp which corresponded to October 2010, DeltaT was 67 seconds. A spot check of the AA+ code against SkyMap now shows both return the same times accurate to the minute. Thanks to "Pavel" for reporting this issue.
  • Introduction of a new bool CAARiseTransitSetDetails::bTransitValid member variable. It turns out that celestial objects do not always transit in a 24 hour UTC day. Test code has been added to AATest.cpp to fully exercise all the cases for the three boolean member variables of bRiseValid, bTransitValid & bSetValid. Thanks to "Pavel" for reporting this issue.
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