Xi Aquilae b

Xi Aquilae b
Exoplanet List of exoplanets
Parent star
Star Xi Aquilae
Constellation Aquila
Right ascension (α) 19h 54m 15s
Declination (δ) +08° 27′ 41″
Apparent magnitude (mV) 4.72
Distance205 ± 13 ly
(62.7 ± 3.9 pc)
Spectral type G9IIIb
Orbital elements
Semi-major axis(a) 0.68 AU
(101 Gm)
    10.8 mas
Eccentricity (e) 0
Orbital period(P) 136.75 ± 0.25 d
(0.37439 y)
Time of periastron (T0) 2,453,001.7 ± 1.4 JD
Physical characteristics
Minimum mass(m sin i)2.8 MJ
Discovery information
Discovery date 19 February 2008
Discoverer(s) Sato et al.[1]
Discovery method Radial velocity
Discovery site Okayama Planet Search Program
 Japan
Discovery status Published[1]
Database references
Extrasolar Planets
Encyclopaedia		data
SIMBADdata
Exoplanet Archivedata
Open Exoplanet Cataloguedata

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.[1]

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.[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', an embodiment of fortitude - emotional and mental strength in the face of adversity.[5]

See also

References

  1. 1 2 3 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
  4. ↑ Final Results of NameExoWorlds Public Vote Released, International Astronomical Union, 15 December 2015.
  5. ↑ NameExoWorlds The Approved Names

External links

Coordinates: 19h 54m 15s, +08° 27′ 41″


This article is issued from Wikipedia - version of the Tuesday, January 05, 2016. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.