Astronomy:HD 16175 b
| Discovery[1] | |
|---|---|
| Discovered by | Peek et al. |
| Discovery site | Lick Observatory |
| radial velocity | |
| Orbital characteristics[3] | |
| 2.13+0.075 −0.08 astronomical unit|AU | |
| Eccentricity | 0.675±0.026 |
| Orbital period | 981+11 −14 d 2.686+0.031 −0.039 yr |
| Inclination | 59°+20° −19° or 121°+19° −20° |
| Longitude of ascending node | 78°+27° −28° |
| astron|astron|helion}} | 2455800.4+4.9 −5.1 |
| 216.8°+4.8° −4.7° | |
| Semi-amplitude | 51.75±2.5[2] |
| Star | HD 16175 |
| Physical characteristics[3] | |
| Mass | 5.9+1.8 −1.0 Jupiter mass |
HD 16175 b is an exoplanet located approximately 195.7 light-years away in the constellation of Andromeda, orbiting the star HD 16175. This planet has a minimum mass 4.8 times that of Jupiter; the true mass was initially unknown since the inclination of the orbit was unknown. This planet orbits at about 2.2 astronomical units, taking 2.73 years to revolve around the star. The orbit of the planet is highly elliptical with an eccentricity of 0.64.[2] In 2023, the inclination and true mass of HD 16175 b were determined via astrometry.[3]
The planet HD 16175 b is named Abol. The name was selected in the NameExoWorlds campaign by Ethiopia, during the 100th anniversary of the IAU. Abol is the first of three rounds of coffee in the Ethiopian traditional coffee ceremony.[4][5]
Discovery
The discovery was made using radial velocity measurements taken between November 2004 and March 2009 with the Coudé Auxiliary and C. Donald Shane telescopes at Lick Observatory.[1]
See also
- List of extrasolar planets
References
- ↑ 1.0 1.1 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.
- ↑ 2.0 2.1 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.
- ↑ 3.0 3.1 3.2 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.
- ↑ "Approved names" (in en). http://www.nameexoworlds.iau.org/final-results.
- ↑ "International Astronomical Union | IAU". https://www.iau.org/news/pressreleases/detail/iau1912/.
External links
Coordinates: 
02h 37m 01.9110s, +42° 03′ 45.479″
de:HD 16175 b
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