| 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. | |
| Detection method | Radial velocity | |
| Discovery site | Okayama Planet Search Program Japan |
|
| Discovery status | Published | |
| Database references | ||
| Extrasolar Planets Encyclopaedia |
data | |
| SIMBAD | 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.