Astronomy:HD 87883 b
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Short description: Extrasolar planet in the constellation Leo Minor
| Discovery | |
|---|---|
| Discovery date | August 13, 2009 |
| Radial velocity | |
| Orbital characteristics[1] | |
| astron|astron|helion}} | 6.48 AU (969,000,000 km) |
| astron|astron|helion}} | 1.06 AU (159,000,000 km) |
| 3.77+0.12 −0.094 astronomical unit|AU | |
| Eccentricity | 0.720+0.038 −0.027 |
| Orbital period | 8.23+0.32 −0.34 yr |
| Inclination | 16.8+1.7 −1.4 or 163.2+1.4 −1.7 |
| Longitude of ascending node | 109.9+4.0 −4.1 |
| astron|astron|helion}} | 2456913+17 −16 |
| 282.1±3.7 | |
| Star | HD 87883 |
| Physical characteristics[1] | |
| Mass | 6.31+0.31 −0.32 |
HD 87883 b is an extrasolar planet which orbits the K-type main sequence star HD 87883, located approximately 59 light years away in the constellation Leo Minor. It is a long-period planet, taking 8.23 years to orbit the star at the average distance of 3.77 AU. However, this planet orbits in a very eccentric path, which ranges distance from as close as 1.06 AU to as far as 6.48 AU. This planet was detected by the radial velocity method on August 13, 2009.[2]
Astrometry of HD 87883 has determined an orbital inclination of either 16.8° or 163.2°, depending on whether the solution is prograde or retrograde. This, combined with the minimum mass, gives a true mass of 6.31 |♃|J}}}}}}.[1]
References
- ↑ 1.0 1.1 1.2 Li, Yiting; Brandt, Timothy D.; Brandt, G. Mirek; Dupuy, Trent J.; Michalik, Daniel; Jensen-Clem, Rebecca; Zeng, Yunlin; Faherty, Jacqueline et al. (2021). "Precise Masses and Orbits for Nine Radial-velocity Exoplanets". The Astronomical Journal 162 (6): 266. doi:10.3847/1538-3881/ac27ab. Bibcode: 2021AJ....162..266L.
- ↑ Fischer, Debra et al. (2009). "Five planets and an independent confirmation of HD 196885 Ab from Lick Observatory". The Astrophysical Journal 703 (2): 1545–1556. doi:10.1088/0004-637X/703/2/1545. Bibcode: 2009ApJ...703.1545F.
Coordinates: 
10h 08m 43.1395s, +34° 14′ 32.135″
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