# LSRD¶

class astropy.coordinates.LSRD(*args, copy=True, representation_type=None, differential_type=None, **kwargs)[source]

A coordinate or frame in the Dynamical Local Standard of Rest (LSRD)

This frame is defined as a velocity of U=9 km/s, V=12 km/s, and W=7 km/s in Galactic coordinates or 16.552945 km/s towards l=53.13 b=25.02. This is defined in:

Delhaye 1965, Solar Motion and Velocity Distribution of Common Stars.

This coordinate frame is axis-aligned and co-spatial with ICRS, but has a velocity offset relative to the solar system barycenter to remove the peculiar motion of the sun relative to the LSRD.

Attributes Summary

Attributes Documentation

default_differential
default_representation
frame_specific_representation_info
name = 'lsrd'