17h56m35.51s, −29° 32′ 21.2″
Size comparison of OGLE-TR-56b with Jupiter.
| |
| Discovery | |
|---|---|
| Discovered by | Dimitar D. Sasselov et al.[1] |
| Discovery date | 3 November 2002 confirmed: 4 January 2003 |
| Transit | |
| Orbital characteristics | |
| Apastron | 0.0225 AU (3,370,000 km) |
| Periastron | 0.0225 AU (3,370,000 km) |
| 0.0225 ± 0.0004 AU (3,366,000 ± 60,000 km) | |
| Eccentricity | 0 |
| 1.211909 ± 0.000001 d 29.08582 h | |
Average orbital speed | 203 |
| Inclination | 78.8 ± 0.5 |
| Star | OGLE-TR-56 |
| Physical characteristics | |
| 1.30 ± 0.05 RJ | |
| Mass | 1.29 ± 0.12 MJ |
Mean density | 779 kg/m3 (1,313 lb/cu yd) |
| 19.8 m/s2 (65 ft/s2) 2.02 g | |
| Temperature | ~1973 |
OGLE-TR-56b is an extrasolar planet located approximately 1500 parsecs or 5000 light years away in the constellationofSagittarius, orbiting the star OGLE-TR-56. This planet was the first known exoplanet to be discovered with the transit method. The object was discovered by the OGLE project, announced on July 5, 2002[2] and confirmed on January 4, 2003 by the Doppler technique.[3] The period of this confirmed planet was the shortest until the confirmed discovery of WASP-12b on April 1, 2008.[4] 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 thought to be only 4 stellar radii from its star, and hot enough to have iron rain.[5]
Media related to OGLE-TR-56 b at Wikimedia Commons
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