| OGLE-TR-113b | |
| Discoverer: | Konacki et al. |
| Discovery Site: |  Poland |
| Discovered: | transit found in 2002, proved to be a planet on 14 April 2004 |
| Discovery Method: | Transit |
| Apsis: | astron |
| Semimajor: | 0.0229± |
| Eccentricity: | 0 |
| Period: | 1.4324757 ± 0.0000013 d |
| Inclination: | 88.8 |
| Mean Radius: | 1.09 ±0.03 |
| Mass: | 1.32 ±0.19 |
OGLE-TR-113b is an extrasolar planet orbiting the star OGLE-TR-113.
In 2002 the Optical Gravitational Lensing Experiment (OGLE) detected periodic dimming in the star's light curve indicating a transiting, planetary-sized object. Since low-mass red dwarfs and brown dwarfs may mimic a planet, radial velocity measurements were necessary to calculate the mass of the body. In 2004, the object was proved to be a new transiting extrasolar planet.
The planet has a mass 1.32 times that of Jupiter. Since the planet's inclination is known, the value is exact. It orbits the star (OGLE-TR-113) in an extremely close orbit, even closer than the famous planets 51 Pegasi b and HD 209458 b. The planet races around the star every 1.43 days. The radius of the planet is only 9% larger than Jupiter's, despite the heating effect by the star. Planets of its kind are sometimes called "super-hot Jupiters".