D22956: Calculating current HA corrected so that -12 < HA <= 12

[Wolfgang Reissenberger]

wreissenberger created this revision.
wreissenberger added reviewers: mutlaqja, TallFurryMan.
Herald added a project: KDE Edu.
Herald added a subscriber: kde-edu.
wreissenberger requested review of this revision.

REVISION SUMMARY
  Bug fix for false meridian flip. This happens, since the calculation of the current HA has a weakness not ensuring that -12 < HA <= 12. For targets with small RA value like M31 <https://phabricator.kde.org/M31> a summer night with an LST of 19:00 leads to an uncorrected HA value of approx. 18:45 - which is equivalent to a corrected value of -5:15.

TEST PLAN
  Set the current time to an August night and slew to M31 <https://phabricator.kde.org/M31>. Without this fix, the Mount tab shows "Meridian flip planned" preventing preview capturing in the Capture module.

REPOSITORY
  R321 KStars

BRANCH
  bug_HA_calculation

REVISION DETAIL
  https://phabricator.kde.org/D22956

AFFECTED FILES
  kstars/ekos/mount/mount.cpp

To: wreissenberger, mutlaqja, TallFurryMan
Cc: kde-edu, narvaez, apol
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