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Xi Aquilae b (abbreviated ξ Aquilae b, ξ Aql b), formally named Fortitudo /fɔːrtɪˈtjuːdoʊ/, is an extrasolar planet approximately 200 light-years from the Sun in the constellation of Aquila. The planet was discovered orbiting the yellow giant star Xi Aquilae in 2008. The planet has a minimum mass of 2.8 Jupiter and a period of 137 days.[1]

Xi Aquilae b
Discovery
Discovered bySato et al.[1]
Discovery siteOkayama Planet Search Program, Japan
Discovery date19 February 2008
Detection method
Radial velocity
Orbital characteristics
Semi-major axis
0.68 AU (102,000,000 km)
Eccentricity0
Orbital period (sidereal)
136.75 ± 0.25 d
0.37439 y
Time of periastron
2,453,001.7 ± 1.4
StarXi Aquilae

    Name


    Following its discovery the planet was designated Xi Aquilae b. In July 2014 the International Astronomical Union launched NameExoWorlds, a process for giving proper names to certain exoplanets and their host stars.[2] The process involved public nomination and voting for the new names.[3] In December 2015, the IAU announced the winning name was Fortitudo for this planet.[4]

    The winning name was submitted by Libertyer, a student club at Hosei University of Tokyo, Japan. Fortitudo is Latin for 'fortitude'. Aquila is Latin for 'eagle', a symbol of fortitude – emotional and mental strength in the face of adversity.[5]


    See also



    References


    1. Sato, Bun'ei; et al. (2008). "Planetary Companions around Three Intermediate-Mass G and K Giants: 18 Delphini, ξ Aquilae and HD 81688". Publications of the Astronomical Society of Japan. 60 (3): 539–550. arXiv:0802.2590. Bibcode:2008PASJ...60..539S. doi:10.1093/pasj/60.3.539.
    2. NameExoWorlds: An IAU Worldwide Contest to Name Exoplanets and their Host Stars. IAU.org. 9 July 2014
    3. "NameExoWorlds The Process". Archived from the original on 2015-08-15. Retrieved 2015-09-05.
    4. Final Results of NameExoWorlds Public Vote Released, International Astronomical Union, 15 December 2015.
    5. "NameExoWorlds The Approved Names". Archived from the original on 2018-02-01. Retrieved 2016-01-05.



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    Fortitudo es un planeta extrasolar, que se encuentra a unos 200 años luz en la constelación del Aquila. El planeta fue descubierto orbitando la estrella Gigante Libertas en 2008. El planeta tiene una masa mínima 2,8 veces la de Júpiter y un periodo orbital de 137 días.


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