[Qgis-user] Astronomical map

Lester Anderson arctica1963 at gmail.com
Mon Jun 13 23:20:43 PDT 2022


Hello all,

I am interested in how one can generate an astronomical map based on Right
Ascension (RA) and Declination (Dec), without converting RA to degrees and
reversing (-15 * RA).

There is the affine transform tool which can be used to scale X and flip,
but this then generates the 0-360 degree scale. The main issue is that the
IAU standard is for the RA to start at 24 and run east to 0!

Any ideas would be most welcome.

Lester
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