Astronomy:HD 16175
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Short description: Star in the constellation Andromeda
| Observation data Equinox J2000.0]] (ICRS) | |
|---|---|
| Constellation | Andromeda |
| Right ascension | 02h 37m 01.91118s[1] |
| Declination | +42° 03′ 45.4685″[1] |
| Apparent magnitude (V) | 7.28[2] |
| Characteristics | |
| Spectral type | F8 IV[3] |
| B−V color index | 0.64[2] |
| Astrometry | |
| Radial velocity (Rv) | 21.83±0.14[1] km/s |
| Proper motion (μ) | RA: −38.864[1] mas/yr Dec.: −41.234[1] mas/yr |
| Parallax (π) | 16.6670 ± 0.0279[1] mas |
| Distance | 195.7 ± 0.3 ly (60.0 ± 0.1 pc) |
| Absolute magnitude (MV) | 3.40[4] |
| Details | |
| Mass | 1.34 ± 0.01[5] M☉ |
| Radius | 1.66 ± 0.04[5] R☉ |
| Luminosity | 3.3 ± 0.01[5] L☉ |
| Surface gravity (log g) | 4.12 ± 0.03[5] cgs |
| Temperature | 6048 ± 35[5] K |
| Age | 3.2 ± 0.2[5] Gyr |
| Other designations | |
BD+41°496, HIP 12191, SAO 38170 | |
| Database references | |
| SIMBAD | data |
HD 16175 is a 7th magnitude G-type star with temperature about 6000 K located 196 light-years (60 parsecs) 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]
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 discovery of the exoplanet HD 16175 b was published in the June 2009 issue of the Publications of the Astronomical Society of the Pacific.[4] The planetary parameters were updated in 2016.[8] In 2023, the inclination and true mass of HD 16175 b were determined via astrometry.[9]
| Companion (in order from star) |
Mass | Semimajor axis (AU) |
Orbital period (years) |
Eccentricity | Inclination | Radius |
|---|---|---|---|---|---|---|
| b / Abol | 5.9+1.8 −1.0 MJ |
2.13+0.075 −0.08 |
2.686+0.031 −0.039 |
0.675±0.026 | 59+20 −19 or 121+19 −20° |
— |
See also
- HD 96167
- List of extrasolar planets
References
- ↑ 1.0 1.1 1.2 1.3 1.4 1.5 Vallenari, A. et al. (2022). "Gaia Data Release 3. Summary of the content and survey properties". Astronomy & Astrophysics. doi:10.1051/0004-6361/202243940 Gaia DR3 record for this source at VizieR.
- ↑ 2.0 2.1 Høg, E.; Fabricius, C.; Makarov, V. V.; Urban, S.; Corbin, T.; Wycoff, G.; Bastian, U.; Schwekendiek, P. et al. (2000), "The Tycho-2 catalogue of the 2.5 million brightest stars", Astronomy & Astrophysics 355: L27–L30, Bibcode: 2000A&A...355L..27H.
- ↑ 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. doi:10.1088/0004-637X/694/2/1085. Bibcode: 2009ApJ...694.1085V.
- ↑ 4.0 4.1 Peek, Kathryn M. G. 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. doi:10.1086/599862. Bibcode: 2009PASP..121..613P.
- ↑ 5.0 5.1 5.2 5.3 5.4 5.5 5.6 Bonfanti, A. et al. (2015). "Revising the ages of planet-hosting stars". Astronomy and Astrophysics 575: A18. doi:10.1051/0004-6361/201424951. Bibcode: 2015A&A...575A..18B. http://www.aanda.org/articles/aa/full_html/2015/03/aa24951-14/aa24951-14.html.
- ↑ "Approved names" (in en). http://www.nameexoworlds.iau.org/final-results.
- ↑ "International Astronomical Union | IAU". https://www.iau.org/news/pressreleases/detail/iau1912/.
- ↑ Díaz, Rodrigo F.; Rey, Javiera; Demangeon, Olivier D. S.; Hébrard, Guillaume; Boisse, Isabelle; Arnold, Luc; Astudillo-Defru, Nicola; Beuzit, Jean-Luc et al. (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. doi:10.1051/0004-6361/201628331. Bibcode: 2016A&A...591A.146D. http://www.aanda.org/10.1051/0004-6361/201628331.
- ↑ 9.0 9.1 Xiao, Guang-Yao et al. (May 2023). "The Masses of a Sample of Radial-Velocity Exoplanets with Astrometric Measurements". Research in Astronomy and Astrophysics 23 (5): 055022. doi:10.1088/1674-4527/accb7e. Bibcode: 2023RAA....23e5022X.
External links
- "Notes for star HD 16175". Extrasolar Planets Encyclopaedia. http://exoplanet.eu/star.php?st=HD+16175. Retrieved 2008-08-24.
Coordinates: 
02h 37m 01.9110s, +42° 03′ 45.479″
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