Xi Aquilae b
|Exoplanet||List of exoplanets|
|Right ascension||(α)||19h 54m 15s|
|Declination||(δ)||+08° 27′ 41″|
|Distance||205 ± 13 ly
(62.7 ± 3.9 pc)
|Semi-major axis||(a)||0.68 AU
|Orbital period||(P)||136.75 ± 0.25 d
|Time of periastron||(T0)||2,453,001.7 ± 1.4 JD|
|Minimum mass||(m sin i)||2.8 MJ|
|Discovery date||19 February 2008|
|Discoverer(s)||Sato et al.|
|Discovery method||Radial velocity|
|Discovery site||Okayama Planet Search Program
|Open Exoplanet Catalogue||data|
Xi Aquilae b (abbreviated ξ Aquilae b, ξ Aql b), also named Fortitudo, 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.
Following its discovery the planet was designated Xi Aquilae b. In July 2014 the International Astronomical Union launched a process for giving proper names to certain exoplanets and their host stars. The process involved public nomination and voting for the new names. In December 2015, the IAU announced the winning name was Fortitudo for this planet.
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', an embodiment of fortitude - emotional and mental strength in the face of adversity.
- 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: . Bibcode:2008PASJ...60..539S. doi:10.1093/pasj/60.3.539.
- NameExoWorlds: An IAU Worldwide Contest to Name Exoplanets and their Host Stars. IAU.org. 9 July 2014
- NameExoWorlds The Process
- Final Results of NameExoWorlds Public Vote Released, International Astronomical Union, 15 December 2015.
- NameExoWorlds The Approved Names
- "ksi Aql". Exoplanets. Retrieved 2008-06-25.
|This extrasolar-planet-related article is a stub. You can help Wikipedia by expanding it.|