Quick update. Managed to fix the annotations using an expression in layout:
CASE
WHEN @grid_number < 0 AND @grid_axis ='x'
THEN (@grid_number /-15)
WHEN @grid_number = 0
THEN @grid_number = 24
WHEN @grid_number > 0 AND @grid_axis ='x'
THEN (360 - @grid_number)/15
WHEN @grid_number > 0
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
