HD 101930

HD 101930
Observation data; Epoch J2000 Equinox J2000
Constellation	Centaurus
Right ascension	11h 43m 30.112s
Declination	–58° 00′ 24.79″
Apparent magnitude (V)	8.21
Characteristics
Spectral type	K2V+
Astrometry
Proper motion (μ)	RA: 15.80 ± 0.78 mas/yr ; Dec.: 347.90 ± 0.78 mas/yr
Parallax (π)	34.24 ± 0.81 mas
Distance	95 ± 2 ly ; (29.2 ± 0.7 pc)
Details
Mass	0.74 ± 0.05 M☉
Temperature	5,079 K
Metallicity	0.17 ± 0.06
Age	5.39×109 years
Other designations
	CD-57°4096, GJ 3683, HIP 57172, LTT 4350, NLTT 28356, SAO 239322
Database references
SIMBAD	data
ARICNS	data
Extrasolar Planets; Encyclopaedia	data

HD 101930 is a dim 8th magnitude star located approximately 95 light years away^[1] in the constellation of Centaurus. It is an orange dwarf (spectral class K2V), somewhat dimmer and cooler than our Sun.^[2]

Planetary system[]

In 2005, the discovery of a planet orbiting the star was announced. This is another discovery using the radial velocity method with the HARPS spectrograph.^[4]

The HD 101930 planetary system^[4]
Companion (in order from star)	Mass	Semimajor axis (AU)	Orbital period (days)	Eccentricity	Inclination	Radius
b	0.30 M_J	0.302	70.46 ± 0.18	0.11 ± 0.02	—	—

References[]

^ ^a ^b ^c ^d ^e ^f van Leeuwen, F. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics. 474 (2): 653–664. arXiv:0708.1752. Bibcode:2007A&A...474..653V. doi:10.1051/0004-6361:20078357. S2CID 18759600.Vizier catalog entry
^ ^a ^b ^c "SIMBAD query result: NLTT 28356 -- High proper-motion Star". SIMBAD. Centre de Données astronomiques de Strasbourg. Retrieved 2009-05-22.
^ http://www.openexoplanetcatalogue.com/planet/HD%20101930%20b/
^ ^a ^b Lovis, C.; et al. (2005). "The HARPS search for southern extra-solar planets III. Three Saturn-mass planets around HD 93083, HD 101930 and HD 102117". Astronomy and Astrophysics. 437 (3): 1121–1126. arXiv:astro-ph/0503660. Bibcode:2005A&A...437.1121L. doi:10.1051/0004-6361:20052864. S2CID 119492030.

External links[]

"HD 101930". Exoplanets. Archived from the original on 2016-03-03. Retrieved 2009-05-22.

Coordinates: 11^h 43^m 30.11^s, −58° 00′ 24.793″

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[van_Leeuwen2007-1] ^ ^a ^b ^c ^d ^e ^f van Leeuwen, F. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics. 474 (2): 653–664. arXiv:0708.1752. Bibcode:2007A&A...474..653V. doi:10.1051/0004-6361:20078357. S2CID 18759600.Vizier catalog entry

[SIMBAD-2] "SIMBAD query result: NLTT 28356 -- High proper-motion Star". SIMBAD. Centre de Données astronomiques de Strasbourg. Retrieved 2009-05-22.

[3] ttp://www.openexoplanetcatalogue.com/planet/HD%20101930%20b/

[Lovis2005-4] Lovis, C.; et al. (2005). "The HARPS search for southern extra-solar planets III. Three Saturn-mass planets around HD 93083, HD 101930 and HD 102117". Astronomy and Astrophysics. 437 (3): 1121–1126. arXiv:astro-ph/0503660. Bibcode:2005A&A...437.1121L. doi:10.1051/0004-6361:20052864. S2CID 119492030.

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Observation data Epoch J2000 Equinox J2000
Constellation	Centaurus
Right ascension	11^h 43^m 30.112^s^[1]
Declination	–58° 00′ 24.79″^[1]
Apparent magnitude (V)	8.21^[2]
Characteristics
Spectral type	K2V+^[2]
Astrometry

Proper motion (μ)	RA: 15.80 ± 0.78^[1] mas/yr Dec.: 347.90 ± 0.78^[1] mas/yr
Parallax (π)	34.24 ± 0.81^[1] mas
Distance	95 ± 2 ly (29.2 ± 0.7 pc)

Details

Mass	0.74 ± 0.05 `M`_☉
Temperature	5,079^[3] K
Metallicity	0.17 ± 0.06
Age	5.39×10⁹ years

Other designations
CD-57°4096, GJ 3683, HIP 57172, LTT 4350, NLTT 28356, SAO 239322
Database references
SIMBAD	data
ARICNS	data
Extrasolar Planets Encyclopaedia	data

HD 101930

Contents

Planetary system[]

See also[]

References[]

External links[]