OGLE-TR-113b

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OGLE-TR-113b
Exoplanet List of exoplanets
Exoplanet Comparison OGLE-TR-113 b.png
Size comparison of OGLE-TR-113b with Jupiter.
Parent star
Star OGLE-TR-113
Constellation Carina
Right ascension (α) 10h 52m 24.40s
Declination (δ) −61° 26′ 48.5″
Distance 1800 ± 100 ly
(550 ± 30[1] pc)
Spectral type K
Orbital elements
Semi-major axis (a) 0.0229 ± 0.0002[2] AU
Eccentricity (e) 0[2]
Orbital period (P) 1.4324757 ± 0.0000013[2] d
Inclination (i) 88.8[2]°
Physical characteristics
Mass (m) 1.32 ±0.19 MJ
Radius (r) 1.09 ±0.03 RJ
Discovery information
Discovery date transit found in 2002,
proved to be a planet
on 14 April 2004[3]
Discoverer(s) Konacki et al.[3]
Discovery method Transit[3]
Discovery site  Poland[3]
Discovery status Confirmed[3]
Database references
Extrasolar Planets
Encyclopaedia
data
SIMBAD data
Exoplanet Archive data
Open Exoplanet Catalogue data

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.[4] 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.[3]


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".[2]

See also[edit]

References[edit]

External links[edit]

Media related to OGLE-TR-113 b at Wikimedia Commons

Coordinates: Sky map 10h 52m 24.40s, −61° 26′ 48.5″