Stellarium / stellarium / 17072145787

Pull #4459

github

Shift HiPS without "type" field by 180° in longitude

The planetary surveys from alasky.cds.unistra.fr appear to have a
reference frame that's rotated by 180° in longitude relative to that
of Stellarium's planetary surveys. These surveys were created by
Aladin/HipsGen, which I assume to be more or less a reference
implementation.

Since we can't easily change Stellarium's frame without backwards
compatibility issues, and the "type" field is a custom field not used
outside of Stellarium, we can use it as an indicator whether we need to
fixup the coordinates of a survey.

0 of 231 new or added lines in 7 files covered. (0.0%)

14706 of 125102 relevant lines covered (11.76%)

18070.18 hits per line