HD 20781 (Q14405105)

Russian Wikipedia

https://ru.wikipedia.org/?oldid=107342783

mass

0.7 solar mass

1 reference

Swedish Wikipedia

https://sv.wikipedia.org/w/index.php?title=HD_20781&oldid=49054629

catalog code

2MASS J03200291-2847016

1 reference

GSC 06445-00983

1 reference

HD 20781

Henry Draper Catalogue

1 reference

SAO 168468

Smithsonian Astrophysical Observatory Star Catalog

1 reference

HIP 15526

1 reference

CCDM J03201-2850B

Catalog of Components of Double and Multiple Stars

1 reference

DENIS J032002.9-284701

Deep Near Infrared Survey of the Southern Sky

1 reference

HIC 15526

Hipparcos Input Catalogue

1 reference

IDS 03159-2913 B

Index Catalogue of Visual Double Stars

1 reference

LTT 1581

Luyten Two-Tenths catalogue

1 reference

NLTT 10635

New Luyten Two-Tenths catalogue

1 reference

PPM 246111

1 reference

TYC 6445-983-1

1 reference

UCAC3 123-7437

Third USNO CCD Astrograph Catalog

1 reference

uvby98 100020781

uvbyβ Photoelectric Photometric Catalogue

1 reference

WDS J03201-2851B

Washington Double Star Catalog

1 reference

YZ 118 1283

Yale Observatory Zone Catalog

1 reference

UCAC2 19813633

Second USNO CCD Astrograph Catalog

1 reference

Fourth USNO CCD Astrograph Catalog

Gaia DR1 5060105892897388288

1 reference

Gaia DR3 5060105897197110144

1 reference

Gaia DR2 5060105897195702656

1 reference

Gaia DR2 5060105892897388288

1 reference

UCAC4 307-003368

1 reference

TIC 144503312

1 reference

1 reference

inferred from equatorial coordinates

companion of

HD 20782

0 references

child astronomical body

HD 20781B

b

0 references

HD 20781 c

c

0 references

HD 20781 d

d

0 references

HD 20781e

e

0 references

distance from Earth

35.9553±0.0308 parsec

1 reference

36.0089±0.0523 parsec

1 reference

35.4±1 parsec

1 reference

Extrasolar Planets Encyclopaedia

Extrasolar Planets Encyclopaedia exoplanet ID

hd_20781_b--945

stellar rotational velocity

1.899±0.335 kilometre per second

1 reference

Spectroscopic Parameters and atmosphEric ChemIstriEs of Stars (SPECIES) I. Code description and dwarf stars catalogue

0.484 kilometre per second

1 reference

Chemical abundances of 1111 FGK stars from the HARPS-GTO planet search sample. III. Sulfur

parallax

27.86±1.23 milliarcsecond

1 reference

The HIPPARCOS Catalogue

28.27±1.08 milliarcsecond

1 reference

Validation of the new Hipparcos reduction

27.95±0.25 milliarcsecond

1 reference

Gaia Data Release 1. Summary of the astrometric, photometric, and survey properties

27.8123±0.0239 milliarcsecond

1 reference

27.7709±0.0404 milliarcsecond

1 reference

declination component of proper motion

−65.8±5.9 milliarcsecond per year

1 reference

The AllWISE motion survey, part 2

−67.69±0.91 milliarcsecond per year

1 reference

Validation of the new Hipparcos reduction

−67.8±1 milliarcsecond per year

1 reference

The HIPPARCOS Catalogue

−66.613±0.074 milliarcsecond per year

1 reference

Gaia Data Release 1. Summary of the astrometric, photometric, and survey properties

−66.614±0.019 milliarcsecond per year

1 reference

−66.663±0.076 milliarcsecond per year

1 reference

right ascension component of proper motion

353.1±6 milliarcsecond per year

1 reference

The AllWISE motion survey, part 2

348.97±0.71 milliarcsecond per year

1 reference

Validation of the new Hipparcos reduction

349.07±0.78 milliarcsecond per year

1 reference

The HIPPARCOS Catalogue

348.905±0.059 milliarcsecond per year

1 reference

Gaia Data Release 1. Summary of the astrometric, photometric, and survey properties

348.869±0.015 milliarcsecond per year

1 reference

348.847±0.065 milliarcsecond per year

1 reference

radial velocity

40.291 kilometre per second

1 reference

Spectroscopic Parameters and atmosphEric ChemIstriEs of Stars (SPECIES) I. Code description and dwarf stars catalogue

39.6 kilometre per second

1 reference

The Geneva-Copenhagen survey of the Solar neighbourhood. Ages, metallicities, and kinematic properties of ∼14 000 F and G dwarfs

40.14±0.36 kilometre per second

1 reference

61.24±4.39 kilometre per second

1 reference

40.31±0.14 kilometre per second

1 reference

spectral class

G9.5V

2 references

Contributions to the Nearby Stars (NStars) Project: Spectroscopy of Stars Earlier than M0 within 40 pc--The Southern Sample

Extrasolar Planets Encyclopaedia

Extrasolar Planets Encyclopaedia exoplanet ID

hd_20781_b--945

K0

1 reference

G.P. Kuiper's spectral classifications of proper-motion stars

K0V

1 reference

Relationship between colors and spectra of late main-sequence stars

G0

1 reference

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

The Tycho-2 catalogue of the 2.5 million brightest stars

9.263±0.017

1 reference

The Tycho-2 catalogue of the 2.5 million brightest stars

8.44±0.01

1 reference

Third U.S. Naval Observatory CCD Astrograph Catalog (UCAC3)

8.17

1 reference

The DENIS database, 3rd Release

8.43±0.04

2 references

7.045±0.024

1 reference

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

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

6.642±0.042

1 reference

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

6.553±0.023

1 reference

8.24852±0.002757

1 reference

luminosity

0.49±0.04 solar luminosity

1 reference

The HARPS search for southern extra-solar planets. XLIV. Eight HARPS multi-planet systems hosting 20 super-Earth and Neptune-mass companions

absolute magnitude

5.74

1 reference

Swedish Wikipedia

https://sv.wikipedia.org/w/index.php?title=HD_20781&oldid=49054629

metallicity

−0.05

1 reference

Spectroscopic Parameters and atmosphEric ChemIstriEs of Stars (SPECIES) I. Code description and dwarf stars catalogue

−0.11

7 references

Spectroscopic parameters for 451 stars in the HARPS GTO planet search program. Stellar [Fe/H] and the frequency of exo-Neptunes

Chemical abundances of 1111 FGK stars from the HARPS GTO planet search program. Galactic stellar populations and planets

SWEET-Cat: A catalogue of parameters for Stars With ExoplanETs

Chemical abundances of 1111 FGK stars from the HARPS GTO planet search program

On the long-term correlation between the flux in the Ca II H & K and H{alpha} lines for FGK stars

Chemical abundances of 1111 FGK stars from the HARPS GTO planet search program

Chemical abundances of 1111 FGK stars from the HARPS-GTO planet search sample. III. Sulfur

−0.12

1 reference

Deriving precise parameters for cool solar-type stars. Optimizing the iron line list

−0.03

1 reference

Abundances in the local region. III. Southern F, G, and K dwarfs

radius

0.81 solar radius

1 reference

Swedish Wikipedia

https://sv.wikipedia.org/w/index.php?title=HD_20781&oldid=49546650

epoch

J2000.0

2 references

Gaia Data Release 1. Summary of the astrometric, photometric, and survey properties

right ascension

50.01226190937542 degree

1 reference

declination

−28.78383068486973 degree

1 reference

effective temperature

5,295 kelvin

1 reference

Spectroscopic Parameters and atmosphEric ChemIstriEs of Stars (SPECIES) I. Code description and dwarf stars catalogue

5,204 kelvin

1 reference

Spectroscopy of New High Proper Motion Stars in the Northern Sky. I. New Nearby Stars, New High-Velocity Stars, and an Enhanced Classification Scheme for M Dwarfs

5,329 kelvin

1 reference

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

5,305 kelvin

2 references

Effective temperature scale and bolometric corrections from 2MASS photometry

Abundances in the local region. III. Southern F, G, and K dwarfs

5,236 kelvin

1 reference

Deriving precise parameters for cool solar-type stars. Optimizing the iron line list

5,256 kelvin

7 references

Spectroscopic parameters for 451 stars in the HARPS GTO planet search program. Stellar [Fe/H] and the frequency of exo-Neptunes

Chemical abundances of 1111 FGK stars from the HARPS GTO planet search program

SWEET-Cat: A catalogue of parameters for Stars With ExoplanETs

Chemical abundances of 1111 FGK stars from the HARPS GTO planet search program. Galactic stellar populations and planets

On the long-term correlation between the flux in the Ca II H & K and H{alpha} lines for FGK stars

Chemical abundances of 1111 FGK stars from the HARPS GTO planet search program

Chemical abundances of 1111 FGK stars from the HARPS-GTO planet search sample. III. Sulfur

surface gravity

32,000 centimetre per square second

1 reference

Spectroscopy of New High Proper Motion Stars in the Northern Sky. I. New Nearby Stars, New High-Velocity Stars, and an Enhanced Classification Scheme for M Dwarfs

24,270 centimetre per square second

1 reference

Spectroscopic Parameters and atmosphEric ChemIstriEs of Stars (SPECIES) I. Code description and dwarf stars catalogue

23,400 centimetre per square second

4 references

Spectroscopic parameters for 451 stars in the HARPS GTO planet search program. Stellar [Fe/H] and the frequency of exo-Neptunes

Chemical abundances of 1111 FGK stars from the HARPS GTO planet search program. Galactic stellar populations and planets

SWEET-Cat: A catalogue of parameters for Stars With ExoplanETs

Chemical abundances of 1111 FGK stars from the HARPS GTO planet search program

20,400 centimetre per square second

1 reference

Deriving precise parameters for cool solar-type stars. Optimizing the iron line list

35,000 centimetre per square second

1 reference

Abundances in the local region. III. Southern F, G, and K dwarfs

0.0192 centimetre per square second

1 reference

On the long-term correlation between the flux in the Ca II H & K and H{alpha} lines for FGK stars

29,000 centimetre per square second

2 references

Chemical abundances of 1111 FGK stars from the HARPS GTO planet search program

Chemical abundances of 1111 FGK stars from the HARPS-GTO planet search sample. III. Sulfur

A

0 references

HD 20781B

B

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Identifiers

1 reference

28 October 2013

1 reference