HD 93083 b is an extrasolar planet orbiting the K-type subgiant star HD 93083 in Antlia constellation. It is probably much less massive than Jupiter, although only the minimum mass is known. The planet's mean distance from the star is about half that of Earth, and the orbit is slightly eccentric. This planet was discovered by the HARPS search team.[2]
| Discovery | |
|---|---|
| Discovered by | Lovis et al.[2] |
| Discovery site | La Silla Observatory, Chile |
| Discovery date | 14 February 2005 |
| Radial Velocity | |
| Orbital characteristics | |
| Apastron | 0.544 AU (81,400,000 km) |
| Periastron | 0.410 AU (61,300,000 km) |
| 0.477 AU (71,400,000 km) | |
| Eccentricity | 0.14 ± 0.03 |
| 143.58 ± 0.6 d 0.3931 y | |
Average orbital speed | 36.3 |
| 2,453,181.7 ± 3.0 | |
| 333.5 ± 7.9 | |
| Semi-amplitude | 18.30 ± 0.5 |
| Star | HD 93083 |
| Physical characteristics | |
| Mass | >0.37 MJ (>118 ME) |
The planet HD 93083 b is named Melquíades. The name was selected in the NameExoWorlds campaign by Colombia, during the 100th anniversary of the IAU. Melquíades is a fictional character in the novel One Hundred Years of Solitude, who walks around Macondo (name of the host star HD 93083).[3][4]
HD 93083 b lies within the habitable zone of its host star. Stability analysis reveals that the orbits of Earth-sized planets located in HD 93083 b's Trojan points would be stable for long periods of time.[5]
See also
editReferences
edit- ^ "HD 93083 b". Geneva Observatory. Retrieved 2008-10-03.
- ^ a b Lovis, C.; et al. (2005). "The HARPS search for southern extra-solar planets III. Three Saturn-mass planets around HD 93083, HD 101930 and HD 102117". Astronomy and Astrophysics. 437 (3): 1121–1126. arXiv:astro-ph/0503660. Bibcode:2005A&A...437.1121L. doi:10.1051/0004-6361:20052864.
- ^ "Approved names". NameExoworlds. Retrieved 2020-01-02.
- ^ "International Astronomical Union | IAU". www.iau.org. Retrieved 2020-01-02.
- ^ Schwarz; Dvorak, R.; Süli, Á.; Érdi, B. (2007). "Survey of the stability region of hypothetical habitable Trojan planets" (PDF). Astronomy and Astrophysics. 474 (3): 1023–1029. Bibcode:2007A&A...474.1023S. doi:10.1051/0004-6361:20077994.
External links
edit- "HD 93083". Exoplanets. Archived from the original on 2012-02-19. Retrieved 2008-10-29.
- Corot Simulation
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