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open-gamma-ray-astro / gamma-astro-data-formats

Data formats for gamma-ray astronomy
https://gamma-astro-data-formats.readthedocs.io
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Remove mandatory keyword EQUINOX, require ra/dec to be in ICRS #142

Open maxnoe opened 4 years ago

maxnoe commented 4 years ago

The up-to-date celestial reference system is the ICRS, which does not have an equinox.

We should require coordinates to be expressen in ICRS and thus drop the equinox keyword.