| Extrasolar planet | List of extrasolar planets | |
|---|---|---|
| Parent star | ||
| Star | XO-5 | |
| Constellation | Lynx | |
| Right ascension | (α) | 07h 46m 51.959s |
| Declination | (δ) | +39° 05′ 40.47″ |
| Apparent magnitude | (mV) | 12.1 |
| Distance | 831 ± 42[1] ly (255 ± 13[1] pc) |
|
| Spectral type | G8V | |
| Orbital elements | ||
| Semimajor axis | (a) | 0.0508 ± 0.0005 AU |
| Periastron | (q) | 0.0507 AU |
| Apastron | (Q) | 0.0509 AU |
| Eccentricity | (e) | 0.0029 |
| Orbital period | (P) | 4.187732 ± 0.00002 d |
| Inclination | (i) | 86.8 ± 0.9° |
| Time of transit | (Tt) | 2454485.6664 ± 0.0004 JD |
| Physical characteristics | ||
| Mass | (m) | 1.15 ± 0.08 MJ |
| Radius | (r) | 1.15 ± 0.12 RJ |
| Density | (ρ) | 1000 kg m-3 |
| Surface gravity | (g) | 22.5 m/s² |
| Temperature | (T) | ~1140 K |
| Discovery information | ||
| Discovery date | May 19, 2008 | |
| Discoverer(s) | Burke et al. | |
| Detection method | Transit | |
| Discovery site | Maui, Hawaii | |
| Discovery status | Published | |
| Database references | ||
| Extrasolar Planets Encyclopaedia |
data | |
| SIMBAD | data | |
XO-5b is an extrasolar planet approximately 831 light years away in the constellation of Lynx. This planet was found by the transit method by Burke et al. in May 2008. The planet has mass 1.15 MJ and radius 1.15 RJ, making the density of this planet identical to water (1000 kg/m3). This planet orbits very close to the G-type parent star, as it is typical for transiting planets, classing this as Hot Jupiter. It takes only 4.188 days (or 100.5 hours) to orbit at an orbital distance of 7.6 gigameters (0.0508 AU).[2]
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