| Extrasolar planet | List of extrasolar planets | |
|---|---|---|
| Parent star | ||
| Star | OGLE-TR-56 | |
| Constellation | Sagittarius | |
| Right ascension | (α) | 17h 56m 35.51s [1] |
| Declination | (δ) | –29° 32′ 21.2″ [1] |
| Distance | ~4,900 ly (~1,500 [2] pc) |
|
| Spectral type | G? | |
| Orbital elements | ||
| Semimajor axis | (a) | 0.0225 ± 0.0004 AU (3.37 Gm) |
| Periastron | (q) | 0.0225 AU (3.37 Gm) |
| Apastron | (Q) | 0.0225 AU (3.37 Gm) |
| Eccentricity | (e) | 0 |
| Orbital period | (P) | 1.211909 ± 0.000001 d |
| (29.08582 h) | ||
| Orbital speed | (υ) | 203 km/s |
| Inclination | (i) | 78.8 ± 0.5° |
| Time of transit | (Tt) | 3936.598 ± 0.001 JD |
| Physical characteristics | ||
| Mass | (m) | 1.29 ± 0.12 MJ |
| Radius | (r) | 1.30 ± 0.05 RJ |
| Density | (ρ) | 779 kg m-3 |
| Surface gravity | (g) | 19.8 m/s² (2.02 g) |
| Temperature | (T) | ~1973 K |
| Discovery information | ||
| Discovery date | 3 November 2002 confirmed: 4 January 2003 |
|
| Discoverer(s) | Konacki et al. | |
| Detection method | Transit | |
| Discovery status | Published | |
| Database references | ||
| Extrasolar Planets Encyclopaedia |
data | |
| SIMBAD | data | |
OGLE-TR-56b is an extrasolar planet located approximately 1500 parsecs away in the constellation of Sagittarius, orbiting the star OGLE-TR-56. This planet was discovered on November 3, 2002[1] by the OGLE project using the transit method and confirmed on January 4, 2003 by the Doppler technique.[2] The period of this confirmed planet was the shortest until the confirmed discovery of WASP-12b on April 1, 2008.[3] The short period and proximity of the OGLE-TR-56 b to its host mean it belongs to a class of objects known as hot Jupiters.
The planet is reported to have iron rain.[4]
Media related to [//commons.wikimedia.org/wiki/Category:OGLE-TR-56_b OGLE-TR-56 b] at Wikimedia Commons