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OGLE-TR-56
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OGLE-TR-56 Observation data
Epoch J2000.0
Constellation Sagittarius
Right ascension 17h 56m 35.51s [1]
Declination -29° 32' 21.2" [1]
Apparent magnitude (V) 16.6 [1]
Distance ~4,900 ly
(~1,500 [2] pc)
Spectral type G?
OGLE-TR-56 is a star in the constellation Sagittarius. In 2003, an exoplanet was discovered orbiting the star.
[edit] OGLE-TR-56b
OGLE-TR-56b Discovery
Discovered by: Konacki et al.
Discovery date: 2003
Detection method(s): Transit
Orbital characteristics
Semi-major axis: 0.0225 ± 0.0004 AU
Eccentricity: 0
Orbital period: 1.211909 ± 0.000001 d
Inclination: 78.8 ± 0.5°
Angular distance: 0.015 mas
Physical characteristics
Mean radius: 1.30 ± 0.05 RJ[3]
Mass: 1.29 ± 0.12 MJ[3]
OGLE-TR-56b is an extrasolar hot jupiter discovered in 2002[1] by the OGLE project using the transit method and confirmed in 2003 by the Doppler technique.[2] As of 2006 it has the shortest orbital period of any known extrasolar planet.
[edit] References
1. ^ a b c d Udalski et al. (2002). "The Optical Gravitational Lensing Experiment. Search for Planetary and Low-Luminosity Object Transits in the Galactic Disk. Results of 2001 Campaign - Supplement". Acta Astronomica 52: 115. (web Preprint)
2. ^ a b Konacki et al. (2003). "An extrasolar planet that transits the disk of its parent star". Nature 421: 507-509. (web Preprint)
3. ^ a b Pont et al. (2007). "The "666" collaboration on OGLE transits I. Accurate radius of the planets OGLE-TR-10b and OGLE-TR-56b with VLT deconvolution photometry". Astronomy and Astrophysics 465: 1069-1074. (web Preprint)
[edit] External links
* OGLE-TR-56 (Extrasolar Visions)
* OGLE-TR-56b (Extrasolar Visions)
* Planet: OGLE-TR-56b (The Extrasolar Planets Encyclopaedia)
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Retrieved from "http://en.wikipedia.org/wiki/OGLE-TR-56"
Categories: Extrasolar planets | Planetary transit variables | Sagittarius constellation | Yellow dwarfs | Variable star stubs | Extrasolar planet stubs
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