Orphan

class gala.coordinates.Orphan(*args, **kwargs)[source]

Bases: astropy.coordinates.BaseCoordinateFrame

A Heliocentric spherical coordinate system defined by the orbit of the Orphan stream, as described in Newberg et al. 2010 (see: http://arxiv.org/abs/1001.0576).

For more information about this class, see the Astropy documentation on coordinate frames in coordinates.

Parameters:

representation : BaseRepresentation or None

A representation object or None to have no data (or use the other keywords)

Lambda : angle_like, optional, must be keyword

The longitude-like angle corresponding to Orphan’s orbit.

Beta : angle_like, optional, must be keyword

The latitude-like angle corresponding to Orphan’s orbit.

distance : Quantity, optional, must be keyword

The Distance for this object along the line-of-sight.

Attributes Summary

default_representation
frame_specific_representation_info
name

Attributes Documentation

default_representation
frame_specific_representation_info
name = 'orphan'