OGLE-TR-113b

OGLE-TR-113b
Size comparison of OGLE-TR-113b with Jupiter
Discovery
Discovered byKonacki et al.[1]
Discovery site Poland[1]
Discovery datetransit found in 2002,
proved to be a planet
on 14 April 2004[1]
Transit[1]
Orbital characteristics
0.0229 ± 0.0002 AU (3,426,000 ± 30,000 km)[2]
Eccentricity0[2]
1.4324757 ± 0.0000013[2] d
Inclination88.8[2]
StarOGLE-TR-113
Physical characteristics
1.09 ±0.03 RJ
Mass1.32 ±0.19 MJ

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.[3] 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.[1]


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]

  1. ^ a b c d e Cite error: The named reference Konacki2004 was invoked but never defined (see the help page).
  2. ^ a b c d e Cite error: The named reference Gillon2006 was invoked but never defined (see the help page).
  3. ^ Cite error: The named reference Udalski2002 was invoked but never defined (see the help page).