Constarium
← Search

Table · dataset · 2026

Corrected proper motion for HIP stars

Listed in IVOA Registry (Virtual Observatory)

The Gaia Data Release 3 (DR3) is an important step in the realization of the future Gaia reference frame.

Description

Ideally, across G magnitudes from 3 to 21, the Gaia DR2 and DR3 objects with their positions (alpha, delta) and proper motions (mu_alpha_, mu_delta_) should be expressed in a nonrotating reference frame relative to distant extragalactic sources (mostly quasars-QSOs) and in accordance with the International Celestial Reference System (ICRS).

There are comparison data for G>16mag objects using Gaia's observations of QSOs, but it is not possible for brighter objects. The QSOs are faint objects in optical domain (just small amount of QSOs for mag) and the validation of the bright part of Gaia reference frame is difficult. We did it and investigated a spin omega of the indicated rotation of the Gaia bright star reference frame.

Read the rest (1 more)

It is omega_z_~0mas/year from the other papers. We determined two spin components (omega_X_, omega_Y_) of the Gaia bright star reference frame (DR2 and DR3) using our original GD catalog of mu_delta_ of 1653 stars. The original data help to avoid spin in the Gaia bright star reference frame.

Links

Where it is published

Documentation and papers

Catalogue records · 2

Topics

Stated by source
Optical
Provenance · 1 source records, 8 field assertions
SourceKeyLast seenRaw
IVOA Registry (Virtual Observatory)ivo://cds.vizier/j/an/347/7012013 d agoJSON v1
FieldAssertionExtractorEvidence
access_levelsource · IVOA Registryconnector:ivoa_registry@1.0.0
concepts[field].local:field:astronomymapping · IVOA Registryconnector:ivoa_registry@1.0.0
concepts[modality].ivoa_waveband:opticalsource · IVOA Registryconnector:ivoa_registry@1.0.0
descriptionsource · IVOA Registryconnector:ivoa_registry@1.0.0rr.resource.res_description
license_textsource · IVOA Registryconnector:ivoa_registry@1.0.0
publication_datesource · IVOA Registryconnector:ivoa_registry@1.0.0
titlesource · IVOA Registryconnector:ivoa_registry@1.0.0rr.resource.res_title
updated_datesource · IVOA Registryconnector:ivoa_registry@1.0.0