HD 142 b
HD 142 b is a jovian exoplanet approximately 85.5 light years away in the constellation of Phoenix. This planet was discovered in 2001 by the Anglo-Australian Planet Search team.[1]
| Discovery | |
|---|---|
| Discovered by | Anglo-Australian Planet Search team[1] |
| Discovery site | Australian Astronomical Observatory[1] |
| Discovery date | Oct 15, 2001 |
| Doppler spectroscopy | |
| Orbital characteristics | |
| 1.02 ± 0.03 AU (152,600,000 ± 4,500,000 km)[2] | |
| Eccentricity | 0.17 ± 0.06[2] |
| 349.7 ± 1.2[2] d | |
| Inclination | 59°±7°[3] |
| 2,452,683 ± 26[2] | |
| 327 ± 26[2] | |
| Semi-amplitude | 33.2 ± 2.5[2] |
| Star | HD 142 |
| Physical characteristics | |
| Mass | 7.1±1.0 MJ[3] |
An astrometric measurement of the planet's inclination and true mass was published in 2022 as part of Gaia DR3.[3]
References
- Tinney, C. G.; et al. (2002). "Two Extrasolar Planets from the Anglo-Australian Planet Search". The Astrophysical Journal. 571 (1): 528–531. arXiv:astro-ph/0111255. Bibcode:2002ApJ...571..528T. doi:10.1086/339916.
- Wittenmyer, Robert A.; et al. (2012). "The Anglo-Australian Planet Search. XXII. Two New Multi-planet Systems". The Astrophysical Journal. 753 (2). 169. arXiv:1205.2765. Bibcode:2012ApJ...753..169W. doi:10.1088/0004-637X/753/2/169.
- Gaia Collaboration; et al. (2022). "Gaia Data Release 3: Stellar multiplicity, a teaser for the hidden treasure". arXiv:2206.05595 [astro-ph.SR].
External links
- "HD 142 b". The Extrasolar Planets Encyclopaedia. Archived from the original on 2012-06-02. Retrieved 2008-07-27.
- "HD 142". Open Exoplanet Catalogue. Retrieved 2014-09-08.
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