[AstroPy] Maps in relative coordinates with WCSAxes

[Sébastien Maret]

Hello,

I find the WCSAxes framework extremely useful for making maps in celestial coordinates (e.g. RA and Dec.). However, I sometime need to make maps in *relative* coordinates instead (that is RA and Dec spherical offsets with respect to given position).

How can I do this with WCSAxes?

Thanks,
Sébastien

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