Computes the coordinate that is a specified pair of angular offsets away from this coordinate.

Parameters¶

d_lonangle-like

The angular offset in the longitude direction. The definition of “longitude” depends on this coordinate’s frame (e.g., RA for equatorial coordinates).

d_latangle-like

The angular offset in the latitude direction. The definition of “latitude” depends on this coordinate’s frame (e.g., Dec for equatorial coordinates).

Returns¶

newcoord~astropy.coordinates.SkyCoord

The coordinates for the location that corresponds to offsetting by d_lat in the latitude direction and d_lon in the longitude direction.

Notes¶

This internally uses ~astropy.coordinates.SkyOffsetFrame to do the transformation. For a more complete set of transform offsets, use ~astropy.coordinates.SkyOffsetFrame or ~astropy.wcs.WCS manually. This specific method can be reproduced by doing SkyCoord(SkyOffsetFrame(d_lon, d_lat, origin=self.frame).transform_to(self)).

See Also¶

spherical_offsets_to : compute the angular offsets to another coordinate directional_offset_by : offset a coordinate by an angle in a direction