Astronomy:HD 1461 b
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Short description: Extrasolar planet in the constellation Cetus
| Discovery | |
|---|---|
| Discovered by | Vogt et al. |
| Discovery site | Keck Observatory Anglo-Australian Observatory |
| Discovery date | 2009-12-14 |
| Radial velocity | |
| Orbital characteristics | |
| 0.0634±0.0022 AU | |
| Eccentricity | <0.131[1] |
| Orbital period | 5.77152±0.00045[1] d |
| Semi-amplitude | 2.28±0.15[1] |
| Star | HD 1461 |
HD 1461 b is an extrasolar planet, orbiting the 6th magnitude G-type star HD 1461, 76.5 light years away in the constellation Cetus. This planet has a minimum mass 6.4 times that of Earth and orbits at a distance of 0.0634 AU with an eccentricity of less than 0.131. It is currently unknown whether the planet is a gas giant like Uranus or Neptune, or has terrestrial composition like CoRoT-7b. This planet was announced on 13 December 2009 after it was discovered using radial velocity measurements taken at the Keck and Anglo-Australian Observatories.[2][3]
References
- ↑ 1.0 1.1 1.2 Díaz, R. F. et al. (2016). "The HARPS search for southern extra-solar planets. XXXVIII. Bayesian re-analysis of three systems. New super-Earths, unconfirmed signals, and magnetic cycles". Astronomy and Astrophysics 585: A134. doi:10.1051/0004-6361/201526729. Bibcode: 2016A&A...585A.134D. https://www.aanda.org/articles/aa/full_html/2016/01/aa26729-15/aa26729-15.html.
- ↑ Rivera, Eugenio J. et al. (2010). "A Super-Earth Orbiting the Nearby Sun-like Star HD 1461". The Astrophysical Journal 708 (2): 1492–1499. doi:10.1088/0004-637X/708/2/1492. Bibcode: 2010ApJ...708.1492R.
- ↑ Tim Stephens (2009-12-13). "New planet discoveries suggest low-mass planets are common around nearby stars". UCSC News. UC Santa Cruz. https://news.ucsc.edu/2009/12/3439.html.
Coordinates: 
00h 18m 41.62s, −8° 03′ 9.5″
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