OGLE-TR-113b

OGLE-TR-113b
Exoplanet List of exoplanets

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″
Distance1800 ± 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
SIMBADdata
Exoplanet Archivedata
Open Exoplanet Cataloguedata

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

References

  1. ↑ Díaz, Rodrigo F.; et al. (2007). "Millimagnitude Photometry for Transiting Extrasolar Planetary Candidates. II. Transits of OGLE-TR-113-b in the Optical and Near-IR". The Astrophysical Journal. 660 (1): 850–857. arXiv:astro-ph/0701345Freely accessible. Bibcode:2007ApJ...660..850D. doi:10.1086/512721.
  2. 1 2 3 4 5 Gillon, M.; et al. (2006). "High accuracy transit photometry of the planet OGLE-TR-113b with a new deconvolution-based method". Astronomy and Astrophysics. 459 (1): 249–255. arXiv:astro-ph/0606395Freely accessible. Bibcode:2006A&A...459..249G. doi:10.1051/0004-6361:20065844.
  3. 1 2 3 4 5 6 Konacki, Maciej; et al. (2004). "The Transiting Extrasolar Giant Planet around the Star OGLE-TR-113". The Astrophysical Journal Letters. 609 (1): L37–L40. arXiv:astro-ph/0404541Freely accessible. Bibcode:2004ApJ...609L..37K. doi:10.1086/422600.
  4. ↑ Udalski, A.; et al. (2002). "The Optical Gravitational Lensing Experiment. Planetary and Low-Luminosity Object Transits in the Carina Fields of the Galactic Disk". Acta Astronomica. 52 (4): 317–359. arXiv:astro-ph/0301210Freely accessible. Bibcode:2002AcA....52..317U.

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

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


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