xyz_to_equatorial

ssapy.utils.xyz_to_equatorial(xq, yq, zq, xe=0, ye=0, ze=0, degrees=False)

Convert equatorial rectangular coordinates to RA and declination.

Parameters:

• xq (float or array-like) – Object coordinates in the equatorial frame.

• yq (float or array-like) – Object coordinates in the equatorial frame.

• zq (float or array-like) – Object coordinates in the equatorial frame.

• xe (float or array-like, optional) – Reference-point coordinates in the equatorial frame.

• ye (float or array-like, optional) – Reference-point coordinates in the equatorial frame.

• ze (float or array-like, optional) – Reference-point coordinates in the equatorial frame.

• degrees (bool, optional) – If True, return angles in degrees. Otherwise, return radians.

Returns:

Right ascension and declination.

Return type:

tuple