HD 181342 b
HD 181342 b is an extrasolar planet orbiting the K-type star HD 181342 approximately 394 light years away in the constellation Sagittarius.[1][3]
| Discovery[1] | |
|---|---|
| Discovered by | Johnson et al. |
| Discovery site | Keck Observatory |
| Discovery date | 2010 |
| Doppler spectroscopy | |
| Orbital characteristics[2] | |
Semi-major axis | 1.592±0.091 AU |
| Eccentricity | 0.022±0.051 |
| 564.1±4.1 d | |
| 2461090±220 JD | |
Argument of perihelion | 290±110 º |
| Semi-amplitude | 44.1±3.3 m/s |
| Star | HD 181342 |
| Physical characteristics[2] | |
| Mass | ≥2.54±0.19 MJ |
The planet HD 181342 b is named Dopere. The name was selected in the NameExoWorlds campaign by Senegal, during the 100th anniversary of the IAU. Dopere is an expansive historical area in the north of Senegal where Belel (name of HD 181342) was located.[4][5]
References
- Johnson, John Asher; et al. (2010). "Retired a Stars and Their Companions. IV. Seven Jovian Exoplanets from Keck Observatory". Publications of the Astronomical Society of the Pacific. 122 (892): 701–711. arXiv:1003.3445. Bibcode:2010PASP..122..701J. doi:10.1086/653809.
- Luhn, Jacob K.; et al. (2019). "Retired A Stars and Their Companions. VIII. 15 New Planetary Signals around Subgiants and Transit Parameters for California Planet Search Planets with Subgiant Hosts". The Astronomical Journal. 157 (4). 149. arXiv:1811.03043. Bibcode:2019AJ....157..149L. doi:10.3847/1538-3881/aaf5d0. S2CID 102486961.
- 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.
- "Approved names". NameExoworlds. Retrieved 2020-01-02.
- "International Astronomical Union | IAU". www.iau.org. Retrieved 2020-01-02.
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