 Size comparison of OGLE-TR-132b with Jupiter | |
| Discovery | |
|---|---|
| Discovered by | Bouchyet al. |
| Discovery date | 14 April 2004 |
| Transit | |
| Orbital characteristics | |
| 0.0306 ± 0.0008 AU (4,580,000 ± 120,000 km) | |
| Eccentricity | 0 |
| 1.689868 ±3e-06d | |
| Inclination | 85 ±1 |
| Star | OGLE-TR-132 |
| Physical characteristics | |
| 1.18 ±0.07RJ | |
| Mass | 1.14 ±0.12MJ |
OGLE-TR-132b is anextrasolar planet orbiting thestarOGLE-TR-132.
In 2003 theOptical Gravitational Lensing Experiment (OGLE) detected periodic dimming in the star'slight curve indicating atransiting,planetary-sized object. Since low-massred dwarfs andbrown dwarfs may mimic a planetradial velocity measurements were necessary to calculate the mass of the body. In 2004 the object was proved to be a new transiting extrasolar planet.[1]
Theplanet has a mass 1.14 times that ofJupiter. Since the planet'sinclination is known, this represents the best measured true mass of the planet, rather than simply the minimum mass as is the case when the inclination is unknown. It orbits the star (OGLE-TR-132) in an extremely close orbit, even closer than the famous planets51 Pegasi b andHD 209458 b. The planet races around the star every 1 day 16.6 hours. The radius of the planet is only 18% larger than Jupiter's, despite the heating effect by the star.[2] Planets of its kind are sometimes called "super-hot Jupiters".[citation needed]
Media related toOGLE-TR-132 b at Wikimedia Commons
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