Skip to main content
`Ctrl`+`K`

# LSRD

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

  Bases: `BaseRADecFrame`

  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

  `default_differential` | Default representation for differential data (e.g., velocity)
  `default_representation` | Default representation for position data
  `frame_attributes` |
  `frame_specific_representation_info` | Mapping for frame-specific component names
  `name` |

  Attributes Documentation

  default_differential

    Default representation for differential data (e.g., velocity)

  default_representation

    Default representation for position data

  frame_attributes = {}
  frame_specific_representation_info

    Mapping for frame-specific component names

  name = 'lsrd'