HD 2421 (Q3780860)

mass

2.31 solar mass

1 reference

https://sv.wikipedia.org/w/index.php?title=HD_2421&oldid=49932805

catalog code

HR 104

Smithsonian Astrophysical Observatory Star Catalog

Bright Star Catalogue

1 reference

GSC 02795-02706

1 reference

HD 2421

Henry Draper Catalogue

1 reference

HIP 2225

1 reference

IRAS 00255+4407

1 reference

SAO 36390

1 reference

Astronomische Gesellschaft Katalog

2MASS J00281364+4423400

1 reference

AG+44 63

1 reference

BD+43 92

1 reference

FK5 2027

1 reference

GC 546

Boss General Catalogue

1 reference

GCRV 252

General Catalogue of Stellar Radial Velocities

1 reference

HIC 2225

Hipparcos Input Catalogue

1 reference

PLX 74

General Catalogue of Trigonometric Stellar Parallaxes

1 reference

PLX 74.00

General Catalogue of Trigonometric Stellar Parallaxes

1 reference

PMC 90-93 1186

Tokyo Photoelectric Meridian Circle Catalog

1 reference

PPM 42973

1 reference

ROT 91

Catalogue of rotational velocities of the stars

1 reference

TD1 235

TD1 Catalog of Stellar Ultraviolet Fluxes

1 reference

TYC 2795-2706-1

1 reference

UBV 339

UBV Photoelectric Photometry Catalogue

1 reference

UBV M 7389

Photoelectric catalogue, magnitudes and colors of stars in the UBV and UCBV systems

1 reference

uvby98 100002421

uvbyβ Photoelectric Photometric Catalogue

1 reference

SBC9 23

Eighth catalogue of the orbital elements of spectroscopic binary systems

1 reference

SBC7 17

Seventh catalogue of the orbital elements of spectroscopic binary systems

1 reference

WEB 413

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

1 reference

http://vizier.cfa.harvard.edu/viz-bin/VizieR-5?-ref=VIZ5d7840711b11d&-out.add=.&-source=VI/42/out&-c=005.3831%20%2b43.7025,eq=B1875,rs=2

Gaia DR2 388722788291499776

1 reference

1 reference

distance from Earth

88.7831±1.2777 parsec

1 reference

stellar rotational velocity

14 kilometre per second

2 references

Rotational velocities of A-type stars in the northern hemisphere. II. Measurement of v sin i

Rotational velocities of A-type stars. III. Velocity distributions

15 kilometre per second

1 reference

A catalogue of stellar rotational velocities

36 kilometre per second

1 reference

Catalogue of rotational velocities of the stars

10 kilometre per second

1 reference

The Relation between Rotational Velocities and Spectral Peculiarities among A-Type Stars

parallax

11.2634±0.1621 milliarcsecond

1 reference

10.6±7.2 milliarcsecond

1 reference

The General Catalogue of Trigonometric Stellar Parallaxes, Fourth Edition

11.54±0.28 milliarcsecond

1 reference

Validation of the new Hipparcos reduction

12.32±0.75 milliarcsecond

1 reference

declination component of proper motion

The HIPPARCOS Catalogue

−16.244±0.119 milliarcsecond per year

1 reference

−14.9±0.16 milliarcsecond per year

1 reference

Validation of the new Hipparcos reduction

−15.33±0.5 milliarcsecond per year

1 reference

right ascension component of proper motion

The HIPPARCOS Catalogue

82.361±0.197 milliarcsecond per year

1 reference

85.12±0.17 milliarcsecond per year

1 reference

Validation of the new Hipparcos reduction

84.1±0.4 milliarcsecond per year

1 reference

The HIPPARCOS Catalogue

radial velocity

2.0 kilometre per second

2 references

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

The orbit of BD +43 92

2±0.9 kilometre per second

1 reference

General Catalogue of Stellar Radial Velocities

2±4.2 kilometre per second

1 reference

Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system

−0.9 kilometre per second

1 reference

spectral class

A2Vs

1 reference

A study of the bright A stars. I. A catalogue of spectral classifications

A2

1 reference

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

5.207±0.014

1 reference

5.173±0.009

1 reference

5.1077±0.0014

1 reference

5.36±0.274

1 reference

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

5.037±0.036

astronomical filter

H band

1 reference

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

4.985±0.02

astronomical filter

K band

1 reference

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

luminosity

9.875 solar luminosity

1 reference

https://sv.wikipedia.org/w/index.php?title=HD_2421&oldid=50088338

absolute magnitude

0.49

1 reference

https://sv.wikipedia.org/w/index.php?title=HD_2421&oldid=50088338

metallicity

−0.10

1 reference

The early A stars. III. Model-atmosphere abundance analysis of four field stars

radius

2.73 solar radius

1 reference

https://sv.wikipedia.org/w/index.php?title=HD_2421&oldid=50088338

1 reference

7.05691151870330 degree

1 reference

declination

44.39447459212700 degree

1 reference

effective temperature

9,705 kelvin

1 reference

Rotational velocities of A-type stars. IV. Evolution of rotational velocities

9,509 kelvin

1 reference

The early A stars. III. Model-atmosphere abundance analysis of four field stars

age estimated by a dating method

413 megaannum

1 reference

English Wikipedia