HD 20121 (Q10293401)

imported from Wikimedia project

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u Eri

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English Wikipedia

1RXS J031225.6-442511

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2EUVE J0312-44.4

The second Extreme Ultraviolet Explorer source catalog

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Cape Photographic Catalogue

2MASS J03122575-4425111

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CPC 0 1521

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EUVE J0312-44.4

The first Extreme Ultraviolet Explorer source catalog

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FK5 2228

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GC 3845

Boss General Catalogue

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GCRV 1777

General Catalogue of Stellar Radial Velocities

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HD 20121

Henry Draper Catalogue

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HIC 14913

Hipparcos Input Catalogue

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HIP 14913

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HR 968

Bright Star Catalogue

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IRAS 03106-4436

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N30 657

Catalog of 5,268 Standard Stars Based on the Normal System N30

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PPM 307403

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RBS 395

ROSAT All-Sky Survey Bright Source Catalogue

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ROT 433

Catalogue of rotational velocities of the stars

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SAO 216209

Smithsonian Astrophysical Observatory Star Catalog

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TD1 2005

TD1 Catalog of Stellar Ultraviolet Fluxes

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UBV 3121

UBV Photoelectric Photometry Catalogue

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PMSC 03089-4448

MSC - a catalogue of physical multiple stars

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WEB 2882

Vitesses radiales. Catalogue WEB: Wilson Evans Batten. Radial velocities: The Wilson-Evans-Batten catalogue

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UBV Photoelectric Photometry Catalogue

Gaia DR3 4850405974392619648

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TIC 152972531

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UBV M 9404

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CCDM J03124-4425AB

Catalog of Components of Double and Multiple Stars

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IDS 03089-4448 AB

Index Catalogue of Visual Double Stars

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uvby98 100020121

uvbyβ Photoelectric Photometric Catalogue

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WDS J03124-4425AB

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X-ray survey of the Large Magellanic Cloud by ROSAT

Gaia DR2 4850405974392311168

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RX J0312.4-4425

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inferred from equatorial coordinates

stellar rotational velocity

64.4±3.2 kilometre per second

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New measurements of rotation and differential rotation in A-F stars: are there two populations of differentially rotating stars?

parallax

22.83±0.78 milliarcsecond

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The HIPPARCOS Catalogue

23.53±0.62 milliarcsecond

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declination component of proper motion

−4.57±0.98 milliarcsecond per year

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−2.61±0.81 milliarcsecond per year

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The HIPPARCOS Catalogue

−6 milliarcsecond per year

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Catalog of 5268 standard stars for the equinox and epoch 1950.0 based on the Normal Star System N30

right ascension component of proper motion

81.63±0.55 milliarcsecond per year

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82.73±0.84 milliarcsecond per year

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The HIPPARCOS Catalogue

89 milliarcsecond per year

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95 milliarcsecond per year

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Catalog of 5268 standard stars for the equinox and epoch 1950.0 based on the Normal Star System N30

radial velocity

17.0 kilometre per second

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Vitesses radiales. Catalogue WEB: Wilson Evans Batten. Radial velocities: The Wilson-Evans-Batten catalogue

The revision of the general catalogue of radial velocities

34±5 kilometre per second

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General Catalogue of Stellar Radial Velocities

17±7.4 kilometre per second

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The Geneva-Copenhagen survey of the Solar neighbourhood. II. New uvby calibrations and rediscussion of stellar ages, the G dwarf problem, age-metallicity diagram, and heating mechanisms of the disk

17 kilometre per second

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The revision of the general catalogue of radial velocities

34.4 kilometre per second

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Radial velocities of 351 stars observed at the Chile station of the Lick Observatory in the period 1924 to 1929

spectral class

F5V

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Catalogue of two dimentional spectral types for the HD stars, Vol. 2

F6III

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MK classification for visual binary components

F 3 V +A8V

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Study of the F-type stars. I. MK spectral types

A 8 V +F3V

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Classification of some bright F-type stars with unusual spectra

F6 III SB

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Radial velocities of fundamental southern stars

Spectral types and luminosities of B, A and F southern stars

A8V+F3V

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Classification of some bright F-type stars with unusual spectra

F2

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VizieR Online Data Catalog: Henry Draper Catalogue and Extension, published in Ann. Harvard Obs. 91-100 (1918-1925)

F3V+A8V

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Study of the F-type stars. I. MK spectral types

F6IIISB

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Radial velocities of fundamental southern stars

Spectral types and luminosities of B, A and F southern stars

VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)

6.37

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5.93

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5.118±0.03

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VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)

4.931±0.026

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VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)

4.827±0.02

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6.0037±0.0097

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right ascension

48.107273269 degree

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declination

−44.419664787 degree

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effective temperature

6,586 kelvin

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New constraints on the chemical evolution of the solar neighbourhood and Galactic disc(s)

6,541 kelvin

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New measurements of rotation and differential rotation in A-F stars: are there two populations of differentially rotating stars?

A

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HD 20121B

series ordinal

B

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HD 20121C

series ordinal

C

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