astro.wikisort.org - Meteorite
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]
| Discovery | |
|---|---|
| Discovery date | August 13, 2009 |
Detection method | Radial velocity |
| Orbital characteristics[1] | |
| Apastron | 6.48 AU (969,000,000 km) |
| Periastron | 1.06 AU (159,000,000 km) |
Semi-major axis | 3.77+0.12 −0.094 AU |
| Eccentricity | 0.720+0.038 −0.027 |
Orbital period (sidereal) | 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 |
Time of periastron | 2456913+17 −16 |
Argument of periastron | 282.1±3.7 |
| Star | HD 87883 |
| Physical characteristics[1] | |
| Mass | 6.31+0.31 −0.32 |
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 MJ.[1]
References
- Li, Yiting; Brandt, Timothy D.; Brandt, G. Mirek; Dupuy, Trent J.; Michalik, Daniel; Jensen-Clem, Rebecca; Zeng, Yunlin; Faherty, Jacqueline; Mitra, Elena L. (2021). "Precise Masses and Orbits for Nine Radial-velocity Exoplanets". The Astronomical Journal. 162 (6): 266. arXiv:2109.10422. Bibcode:2021AJ....162..266L. doi:10.3847/1538-3881/ac27ab. S2CID 237592581.
- 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. arXiv:0908.1596. Bibcode:2009ApJ...703.1545F. doi:10.1088/0004-637X/703/2/1545.
Constellation of Leo Minor | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| |||||||||||||
| Stars |
| ||||||||||||
| |||||||||||||
| Galaxies |
| ||||||||||||
 Category | |||||||||||||
 | This extrasolar-planet-related article is a stub. You can help Wikipedia by expanding it. |
На других языках
- [en] HD 87883 b
[es] HD 87883 b
HD 87883 b es un planeta extrasolar que orbita la estrella de tipo K de la secuencia principal HD 87883, localizo aproximadamente a 59 años luz de distancia en la constelación de Leo Minor. Se trata de un planeta con un largo periodo orbital de más de 7 años con un semieje mayor de 3,60 UA. Sin embargo, este planeta tiene una orbita muy excéntrica, oscilando la distancia entre 1,69 UA hasta 5,51 UA. Este planeta fue detectado por el método de la velocidad radial el 13 de agosto de 2009.[1]Другой контент может иметь иную лицензию. Перед использованием материалов сайта WikiSort.org внимательно изучите правила лицензирования конкретных элементов наполнения сайта.
WikiSort.org - проект по пересортировке и дополнению контента Википедии