astro.wikisort.org - Meteorite
Mu Arae b, often designated HD 160691 b, formally named Quijote /kiˈhoʊtiː/, is an exoplanet orbiting the star Mu Arae of the constellation Ara.
 Simulated image of Mu Arae b | |
| Discovery | |
|---|---|
| Discovered by | Butler, Marcy |
| Discovery site | California, US |
| Discovery date | December 12, 2000 |
Detection method | Doppler Spectroscopy |
| Orbital characteristics | |
| Apastron | 1.689 AU (252,700,000 km) |
| Periastron | 1.304 AU (195,100,000 km) |
Semi-major axis | 1.497 AU (223,900,000 km)[1] |
| Eccentricity | 0.128[1] |
Orbital period (sidereal) | 643.25 ± 0.90[1] d 1.7611 y |
Time of periastron | 2452365.6 ± 12.6[1] |
Argument of periastron | 22.0 ± 7.0[1] |
| Semi-amplitude | 37.78 ± 0.40 |
| Star | Mu Arae |
The planet is at least one and a half times the mass of Jupiter, and its orbital period is 643.25 days. The discovery of this planet was announced on December 12, 2002, and was originally thought to be on a highly eccentric orbit.[2] The latest models of Mu Arae planetary system, which has four known planets, give a lower eccentricity orbit.[1] Although the planet itself is likely to be a gas giant with no solid surface, the orbital distance of 1.497 astronomical units from its star puts it within the habitable zone of its planetary system. As a result, large satellites of the planet, if they exist, could potentially support life.[improper synthesis?] However, it may not receive enough ultraviolet light for abiogenesis to proceed.[3] Furthermore, it is not clear that Earth-size moons can actually be formed in the environment around a gas giant planet.[4]
Name
In July 2014 the International Astronomical Union launched NameExoWorlds, a process for giving proper names to certain exoplanets and their host stars.[5] The process involved public nomination and voting for the new names.[6] In December 2015, the IAU announced the winning name was Quijote for this planet.[7] The winning name was submitted by the Planetario de Pamplona, Spain. Quijote was the lead character of the novel El Ingenioso Hidalgo Don Quixote de la Mancha.[8] Although the character's name is more commonly spelled Quixote in English, Quijote is the current Spanish spelling.
References
- Pepe, F.; Correia, A. C. M.; Mayor, M.; Tamuz, O.; et al. (2007). "The HARPS search for southern extra-solar planets. VIII. μ Arae, a system with four planets". Astronomy and Astrophysics. 462 (2): 769–776. arXiv:astro-ph/0608396. Bibcode:2007A&A...462..769P. doi:10.1051/0004-6361:20066194. S2CID 119071803.
- Butler, R. Paul; Tinney, C. G.; Marcy, Geoffrey W.; Jones, Hugh R. A.; et al. (2001). "Two New Planets from the Anglo-Australian Planet Search". The Astrophysical Journal. 555 (1): 410–417. Bibcode:2001ApJ...555..410B. doi:10.1086/321467. hdl:2299/137.
- Buccino, Andrea P.; Lemarchand, Guillermo A.; Mauas, Pablo J. D. (2006). "Ultraviolet Radiation Constraints around the Circumstellar Habitable Zones". Icarus. 183 (2): 491–503. arXiv:astro-ph/0512291. Bibcode:2006Icar..183..491B. doi:10.1016/j.icarus.2006.03.007. S2CID 2241081.
- Canup, R.; Ward, W. (2006). "A common mass scaling for satellite systems of gaseous planets". Nature. 441 (7095): 834–839. Bibcode:2006Natur.441..834C. doi:10.1038/nature04860. PMID 16778883. S2CID 4327454.
- NameExoWorlds: An IAU Worldwide Contest to Name Exoplanets and their Host Stars. IAU.org. 9 July 2014
- "NameExoWorlds The Process". Archived from the original on 2015-08-15. Retrieved 2015-09-05.
- Final Results of NameExoWorlds Public Vote Released, International Astronomical Union, 15 December 2015.
- "NameExoWorlds The Approved Names". Archived from the original on 2018-02-01. Retrieved 2016-01-03.
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На других языках
- [en] Mu Arae b
[es] Quijote (planeta)
Quijote (también conocido como Mu Arae b)[2] es el primer planeta extrasolar que se descubrió en órbita alrededor de la estrella Cervantes. Situado en la constelación de Ara, a una distancia aproximada de 49,8 años luz de la Tierra, Quijote es el tercero en distancia desde su estrella, de los cuatro planetas que componen el sistema planetario. Su descubrimiento fue anunciado el 12 de diciembre de 2002.[ru] Мю Жертвенника b
Мю Жертвенника b (обозначения: Mu Arae b, μ Ara b, HD 160691 b, Кихот) — экзопланета, водный гигант, расположенный в планетарной системе солнцеподобной звезды Мю Жертвенника. Открыта в 2000 году методом доплеровской спектроскопии. Период обращения 654,5 суток, большая полуось орбиты 1,5 ± 0,02 а. е., эксцентриситет 0,31 (вытянутая орбита), аргумент перицентра (омега) (294 ± 9)°. Масса не менее 1,676 Юпитера.Другой контент может иметь иную лицензию. Перед использованием материалов сайта WikiSort.org внимательно изучите правила лицензирования конкретных элементов наполнения сайта.
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