astropy.wcs.utils.skycoord_to_pixel(coords, wcs, origin=0, mode=u'all')[source] [edit on github]

Convert a set of SkyCoord coordinates into pixels.


coords : SkyCoord

The coordinates to convert.

wcs : WCS

The WCS transformation to use.

origin : int

Whether to return 0 or 1-based pixel coordinates.

mode : ‘all’ or ‘wcs’

Whether to do the transformation including distortions ('all') or only including only the core WCS transformation ('wcs').


xp, yp : numpy.ndarray

The pixel coordinates