Discovery | |
---|---|
Discovered by | Sato et al.[1] |
Discovery site | Okayama Planet Search Program, Japan |
Discovery date | 19 February 2008 |
Radial velocity | |
Orbital characteristics | |
0.68 AU (102,000,000 km) | |
Eccentricity | 0 |
136.75 ± 0.25 d 0.37439 y | |
2,453,001.7 ± 1.4 | |
Star | Xi Aquilae |
Physical characteristics | |
Mass | ≥2.0 and <37.1[2] MJ |
Xi Aquilae b (abbreviated ξ Aquilae b, ξ Aql b), formally named Fortitudo /fɔːrtɪˈtjuːdoʊ/, is an extrasolar planet approximately 184 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]