Planetary System
In 2008, the presence of a planetary companion was announced, based upon Doppler spectroscopy results from the Okayama Astrophysical Observatory. This object, designated as Xi Aquilae b, has at least 2.8 Jupiter masses and is orbiting at an estimated 0.68 astronomical units from the star with a period of 136.75 days. Any planets that once orbited to the interior of this object may have been consumed as the star entered the red giant stage and expanded in radius.
| Companion |
Mass | Semimajor axis |
Orbital period |
Eccentricity | Radius |
|---|---|---|---|---|---|
| b | >2.8 MJ | 0.68 | 136.75 ± 0.25 | 0 (fixed) | — |
Read more about this topic: Xi Aquilae
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