Unified Astronomy Thesaurus

Last uploaded: June 20, 2024
Preferred Name

Proper motions

Synonyms

Stellar spatial motions

Definitions

The apparent motion of a star across the sky (not including a star's parallax), arising from the star's velocity through space with respect to the Sun. Proper motion is usually tabulated in star catalogs as changes in right ascension and declination per year or century.

ID

http://astrothesaurus.org/uat/1295

altLabel

Stellar spatial motions

broader

http://astrothesaurus.org/uat/1615

contributor

http://editor.vocabs.ands.org.au/user/AAS_Frey.Katie_Admin

definition

The apparent motion of a star across the sky (not including a star's parallax), arising from the star's velocity through space with respect to the Sun. Proper motion is usually tabulated in star catalogs as changes in right ascension and declination per year or century.

modified

2020-11-03T20:35:46.612Z

2020-11-03T20:36:00.383Z

prefLabel

Proper motions

related

http://astrothesaurus.org/uat/1286

http://astrothesaurus.org/uat/2109

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