Mu Arae e / Sancho
Mu Arae e rendered by Celestia
Discovery
Discovered byButler, Marcy
Discovery siteCalifornia, USA
Discovery dateJune 13, 2002
Radial velocity
Orbital characteristics
Apastron5.750 AU (860,200,000 km)
Periastron4.719 AU (706,000,000 km)
5.235 AU (783,100,000 km)[1]
Eccentricity0.0985 ± 0.0627[1]
4205.8 ± 758.9[1] d
11.51 y
2,450,541 ± 96[1]
57.6 ± 43.7[1]
Semi-amplitude18.1 ± 1.1[1]
StarMu Arae

    Mu Arae e, also known as HD 160691 e, later named Sancho /ˈsæntʃoʊ/,[2] is one of the four extrasolar planets orbiting the star Mu Arae of the constellation Ara.

    Naming

    In July 2014 the International Astronomical Union launched NameExoWorlds, a process for giving proper names to certain exoplanets and their host stars.[3] The process involved public nomination and voting for the new names.[4] In December 2015, the IAU announced the winning name was Sancho for this planet.[5] The winning name was submitted by the Planetario de Pamplona, Spain. Sancho was the squire of the lead character of the novel Don Quixote.[6]

    Orbit

    The planet's discovery was announced on June 13, 2002. Mu Arae e is a gas giant at least 1.8 times as massive as Jupiter. The planet orbits at Jupiter-like distance at 5.235 AU.

    References

    1. 1 2 3 4 5 6 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 59157984.
    2. ↑ "Sancho". Oxford English Dictionary (Online ed.). Oxford University Press. (Subscription or participating institution membership required.)
    3. ↑ NameExoWorlds: An IAU Worldwide Contest to Name Exoplanets and their Host Stars. IAU.org. 9 July 2014
    4. ↑ "NameExoWorlds The Process". Archived from the original on 2015-08-15. Retrieved 2016-01-03.
    5. ↑ Final Results of NameExoWorlds Public Vote Released, International Astronomical Union, 15 December 2015.
    6. ↑ "NameExoWorlds The Approved Names". Archived from the original on 2018-02-01. Retrieved 2016-01-03.


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