Xi Aquilae b

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Xi Aquilae b
Extrasolar planet List of extrasolar planets
Parent star
Star Xi Aquilae
Constellation Aquila
Right ascension (α) 19h 54m 15s
Declination (δ) +08° 27′ 41″
Apparent magnitude (mV) 4.72
Distance 205 ± 13 ly
(62.7 ± 3.9 pc)
Spectral type G9IIIb
Orbital elements
Semimajor 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
Discovery status Published[1]
Database references
Extrasolar Planets
Exoplanet Archive data
Open Exoplanet Catalogue data

Xi Aquilae b (or ksi Aql b) is an extrasolar planet approximately 200 light-years away 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]

See also[edit]


  1. ^ a b c 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. 

External links[edit]

  • "ksi Aql". Exoplanets. Retrieved 2008-06-25. 

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