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HD 16175 is a 7th magnitude G-type star with temperature about 6000 K located approximately 196 light-years away[1] in the Andromeda constellation. This star is only visible through binoculars or better equipment; it is also 3.3 times more luminous, is 1.34 times more massive, and has a radius 1.66 times bigger than our local star.[5]

HD 16175
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Andromeda
Right ascension 02h 37m 01.9112s[1]
Declination +42° 03′ 45.4696″[1]
Apparent magnitude (V) 7.28[2]
Characteristics
Spectral type F8 IV[3]
B−V color index 0.64[2]
Astrometry
Proper motion (μ) RA: −38.835±0.085[1] mas/yr
Dec.: −41.306±0.081[1] mas/yr
Parallax (π)16.6775 ± 0.0684 mas[1]
Distance195.6 ± 0.8 ly
(60.0 ± 0.2 pc)
Absolute magnitude (MV)3.40[4]
Details
Mass1.34 ± 0.01[5] M☉
Radius1.66 ± 0.04[5] R☉
Luminosity3.3 ± 0.01[5] L☉
Surface gravity (log g)4.12 ± 0.03[5] cgs
Temperature6048 ± 35[5] K
Age3.2 ± 0.2[5] Gyr
Other designations
BD+41°496, HIP 12191, SAO 38170
Database references
SIMBADdata

The star HD 16175 is named Buna. The name was selected in the NameExoWorlds campaign by Ethiopia, during the 100th anniversary of the IAU. Buna is the commonly used word for coffee in Ethiopia.[6][7]


Planetary system


The extrasolar planet HD 16175 b was published in the June 2009 issue of the Publications of the Astronomical Society of the Pacific.[4]

The HD 16175 planetary system[8]
Companion
(in order from star)		 Mass Semimajor axis
(AU)		 Orbital period
(days)		 Eccentricity Inclination Radius
b >4.77±0.37 MJ 2.148±0.076 995.4±2.8 0.637±0.020 — —

See also



References


  1. Brown, A. G. A.; et al. (Gaia collaboration) (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics. 616. A1. arXiv:1804.09365. Bibcode:2018A&A...616A...1G. doi:10.1051/0004-6361/201833051. Gaia DR2 record for this source at VizieR.
  2. Høg, E.; Fabricius, C.; Makarov, V. V.; Urban, S.; Corbin, T.; Wycoff, G.; Bastian, U.; Schwekendiek, P.; Wicenec, A. (2000), "The Tycho-2 catalogue of the 2.5 million brightest stars", Astronomy & Astrophysics, 355: L27–L30, Bibcode:2000A&A...355L..27H.
  3. Van Belle, Gerard T.; von Braun, Kaspar (2009). "Directly Determined Linear Radii and Effective Temperatures of Exoplanet Host Stars". The Astrophysical Journal. 694 (2): 1085–1098. arXiv:0901.1206. Bibcode:2009ApJ...694.1085V. doi:10.1088/0004-637X/694/2/1085. S2CID 18370219.
  4. Peek, John Asher; et al. (2009). "Old, rich, and eccentric: two jovian planets orbiting evolved metal-rich stars". Publications of the Astronomical Society of the Pacific. 121 (880): 613–620. arXiv:0904.2786. Bibcode:2009PASP..121..613P. doi:10.1086/599862. S2CID 12042779.
  5. Bonfanti, A.; et al. (2015). "Revising the ages of planet-hosting stars". Astronomy and Astrophysics. 575. A18. arXiv:1411.4302. Bibcode:2015A&A...575A..18B. doi:10.1051/0004-6361/201424951. S2CID 54555839.
  6. "Approved names". NameExoworlds. Retrieved 2020-01-02.
  7. "International Astronomical Union | IAU". www.iau.org. Retrieved 2020-01-02.
  8. Díaz, Rodrigo F.; Rey, Javiera; Demangeon, Olivier D. S.; Hébrard, Guillaume; Boisse, Isabelle; Arnold, Luc; Astudillo-Defru, Nicola; Beuzit, Jean-Luc; Bonfils, Xavier; Borgniet, Simon; Bouchy, François; Bourrier, Vincent; Courcol, Bastien; Deleuil, Magali; Delfosse, Xavier; Ehrenreich, David; Forveille, Thierry; Lagrange, Anne-Marie; Mayor, Michel; Moutou, Claire; Pepe, Francesco; Queloz, Didier; Santerne, Alexandre; Santos, Nuno C.; Sahlmann, Johannes; Ségransan, Damien; Udry, Stéphane; Wilson, Paul A. (2016). "The SOPHIE search for northern extrasolar planets XI. Three new companions and an orbit update: Giant planets in the habitable zone". Astronomy & Astrophysics. 591: A146. arXiv:1604.07610. Bibcode:2016A&A...591A.146D. doi:10.1051/0004-6361/201628331. S2CID 3282336.



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На других языках

[de] HD 16175

HD 16175 ist ein etwa 200 Lichtjahre entfernter Unterriese der Spektralklasse G0 im Sternbild Andromeda. Er hat eine scheinbare visuelle Helligkeit von 7,3 mag und ist ein Vordergrundstern zum Offenen Sternhaufen Messier 34.
- [en] HD 16175

[es] HD 16175

HD 16175 (HIP 12191 / SAO 38170 / BD+41 496) es una estrella de magnitud aparente +7,28.[1] Está situada en la constelación de Andrómeda, cerca del límite con Perseo, a unos 2º al noroeste de 12 Persei. Se encuentra a 195 años luz de distancia del Sistema Solar. En 2007 se anunció el descubrimiento de un planeta extrasolar en órbita alrededor de esta estrella.

[ru] HD 16175

HD 16175 — одиночная звезда в созвездии Андромеды на расстоянии приблизительно 196 световых лет (около 60 парсеков) от Солнца[6]. Вокруг звезды обращается, как минимум, одна планета.


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