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Star in the constellation Centaurus
HD 101930 , also known as Gliese 3683 , is an orange hued
star with an orbiting
exoplanet located in the southern
constellation
Centaurus . It has an
apparent magnitude of 8.21,
[2] making it faintly visible in
binoculars but not to the
naked eye . The system is located relatively close at a distance of 98
light years
[1] but is receding with a heliocentric
radial velocity of 18.4
km/s .
[5] It has a relatively large
proper motion , traversing the
celestial sphere with an
angular velocity of 0.320
″ ·yr−1 .
[13]
HD 101930 has a
stellar classification of K2 V+,
[3] indicating that it is an ordinary
K-type main-sequence star . It has a current mass of 0.82 M ☉
[6] and is said to be 5.4
billion years old,
[8] which is slightly older than the
Sun . The object has 87% the
radius of the Sun
[7] and an
effective temperature of 5,079
K .
[5] When combined, these parameters yield a
luminosity 43% that of the
Sun from its
photosphere .
[8] As expected with planetary hosts, HD 101930 is metal enriched, having a
metallicity 26% above solar levels.
[10] The star's
projected rotational velocity is similar to the Sun's, having a value of 2
km/s .
[11]
A 2007 multicity survey found a co-moving companion located 73
″ away,
[14] making it a
binary star . It has a class of M0-1
[15] and a
mass of 0.7
M ☉ .
[14]
Planetary system
In 2005, the discovery of an exoplanet orbiting the star was announced. This is another discovery using the
radial velocity method with the
HARPS spectrograph . As the
inclination of the
orbital plane is unknown, only a lower bound on the mass can be determined. It has at least 30% of the
mass of Jupiter .
[5]
See also
References
^
a
b
c
d
e Vallenari, A.; et al. (Gaia collaboration) (2023).
"Gaia Data Release 3. Summary of the content and survey properties" . Astronomy and Astrophysics . 674 : A1.
arXiv :
2208.00211 .
Bibcode :
2023A&A...674A...1G .
doi :
10.1051/0004-6361/202243940 .
S2CID
244398875 .
Gaia DR3 record for this source at
VizieR .
^
a
b
c Anderson, E.; Francis, Ch. (May 2012). "XHIP: An extended hipparcos compilation". Astronomy Letters . 38 (5): 331–346.
arXiv :
1108.4971 .
Bibcode :
2012AstL...38..331A .
doi :
10.1134/S1063773712050015 .
eISSN
1562-6873 .
ISSN
1063-7737 .
S2CID
119257644 .
^
a
b Gray, R. O.; Corbally, C. J.; Garrison, R. F.; McFadden, M. T.; Bubar, E. J.; McGahee, C. E.; O'Donoghue, A. A.; Knox, E. R. (2 June 2006).
"Contributions to the Nearby Stars (NStars) Project: Spectroscopy of Stars Earlier than M0 within 40 pc--The Southern Sample" . The Astronomical Journal . 132 (1): 161–170.
arXiv :
astro-ph/0603770 .
Bibcode :
2006AJ....132..161G .
doi :
10.1086/504637 .
eISSN
1538-3881 .
ISSN
0004-6256 .
^ Cousins, A. W. J.; Stoy, R. H. (1963). Photoelectric magnitudes and colours of southern stars .
Bibcode :
1963pmcs.book.....C .
^
a
b
c
d
e
f Lovis, C.; Mayor, M.; Bouchy, F.; Pepe, F.; Queloz, D.; Santos, N. C.; Udry, S.; Benz, W.; Bertaux, J.-L.; Mordasini, C.; Sivan, J.-P. (30 June 2005).
"The HARPS search for southern extra-solar planets" . Astronomy & Astrophysics . 437 (3): 1121–1126.
arXiv :
astro-ph/0503660 .
Bibcode :
2005A&A...437.1121L .
doi :
10.1051/0004-6361:20052864 .
eISSN
1432-0746 .
ISSN
0004-6361 .
S2CID
119492030 .
^
a
b Margaret C Turnbull (2015). "ExoCat-1: The Nearby Stellar Systems Catalog for Exoplanet Imaging Missions".
arXiv :
1510.01731 [
astro-ph.SR ].
^
a
b Stassun, Keivan G.; et al. (9 September 2019).
"The Revised TESS Input Catalog and Candidate Target List" . The Astronomical Journal . 158 (4): 138.
arXiv :
1905.10694 .
Bibcode :
2019AJ....158..138S .
doi :
10.3847/1538-3881/ab3467 .
eISSN
1538-3881 .
^
a
b
c
d Bonfanti, A.; Ortolani, S.; Piotto, G.; Nascimbeni, V. (12 February 2015).
"Revising the ages of planet-hosting stars" . Astronomy & Astrophysics . 575 : A18.
arXiv :
1411.4302 .
Bibcode :
2015A&A...575A..18B .
doi :
10.1051/0004-6361/201424951 .
eISSN
1432-0746 .
ISSN
0004-6361 .
S2CID
54555839 .
^ Sousa, S. G.; Santos, N. C.; Mayor, M.; Udry, S.; Casagrande, L.; Israelian, G.; Pepe, F.; Queloz, D.; Monteiro, M. J. P. F. G. (4 June 2008).
"Spectroscopic parameters for 451 stars in the HARPS GTO planet search program" . Astronomy & Astrophysics . 487 (1): 373–381.
arXiv :
0805.4826 .
Bibcode :
2008A&A...487..373S .
doi :
10.1051/0004-6361:200809698 .
eISSN
1432-0746 .
ISSN
0004-6361 .
^
a
b Tsantaki, M.; Sousa, S. G.; Santos, N. C.; Montalto, M.; Delgado-Mena, E.; Mortier, A.; Adibekyan, V.; Israelian, G. (October 2014).
"Spectroscopic parameters for solar-type stars with moderate-to-high rotation" . Astronomy & Astrophysics . 570 : A80.
arXiv :
1407.6765 .
Bibcode :
2014A&A...570A..80T .
doi :
10.1051/0004-6361/201424257 .
eISSN
1432-0746 .
ISSN
0004-6361 .
^
a
b Llorente de Andrés, F.; Chavero, C.; de la Reza, R.; Roca-Fàbrega, S.; Cifuentes, C. (October 2021).
"The evolution of lithium in FGK dwarf stars" . Astronomy & Astrophysics . 654 : A137.
arXiv :
2108.05852 .
Bibcode :
2021A&A...654A.137L .
doi :
10.1051/0004-6361/202141339 .
eISSN
1432-0746 .
ISSN
0004-6361 .
^
"HD 101930" .
SIMBAD .
Centre de données astronomiques de Strasbourg . Retrieved May 22, 2009 .
^ Luyten, W. J. (June 1995). "NLTT Catalogue (Luyten, 1979)". VizieR On-line Data Catalog: I/98A. Originally published in: 1979nltt.book.....L .
Bibcode :
1995yCat.1098....0L .
^
a
b Mugrauer, M.; Seifahrt, A.; Neuhauser, R. (11 July 2007).
"The multiplicity of planet host stars - new low-mass companions to planet host stars" . Monthly Notices of the Royal Astronomical Society . 378 (4): 1328–1334.
arXiv :
0704.1767 .
Bibcode :
2007MNRAS.378.1328M .
doi :
10.1111/j.1365-2966.2007.11858.x .
eISSN
1365-2966 .
ISSN
0035-8711 .
^ Lindgren, Sara; Heiter, Ulrike; Seifahrt, Andreas (February 2016).
"Metallicity determination of M dwarfs" . Astronomy & Astrophysics . 586 : A100.
arXiv :
1510.06642 .
Bibcode :
2016A&A...586A.100L .
doi :
10.1051/0004-6361/201526602 .
eISSN
1432-0746 .
ISSN
0004-6361 .
External links