OGLE-TR-182

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**OGLE-TR-182**
Observation data Epoch J2000.0
Constellation (pronunciation)	Carina
Right ascension	11^h 09^m 19^s
Declination	-61º 05' 43″
Apparent magnitude (V)	16.84
Absolute magnitude (V)	3.26
Distance	approx. 12700 ly (approx. 3900 pc)
Spectral type	G
Other designations
n/a

OGLE-TR-182 is a star in the constellation Carina at a distance of approximately 12700 light years. It is home to the transiting extrasolar planet discovered in October 2007.

[edit] OGLE-TR-182 b

**OGLE-TR-182 b**
Orbital elements
Extrasolar planet		List of extrasolar planets
Semimajor axis	(a)	0.051 ± 0.001 AU
Eccentricity	(e)	0
Orbital period	(P)	3.9791 ± 1e-5 d
Inclination	(i)	85.7 ± 0.3°
Angular distance	(θ)	0.001 mas
Time of periastron	(T₀)	2454270.572 JD
Semi-amplitude	(K)	95.7 m/s
Physical characteristics
Mass	(m)	1.01 ± 0.15 M_J
Radius	(r)	1.13^+0.24_-0.08 R_J
Discovery information
Discovery date		October 28, 2007
Discoverer(s)		Pont et al. (OGLE)
Detection method		transit
Discovery status		Published

OGLE-TR-182 b is an exoplanet that has mass of 319 Earths, only 1% greater than Jupiter and a radius is 13% greater. The planet’s orbit takes about 4 days to orbit the star at a distance of one twentieth that of Earth’s.

[edit] References

F. Pont, O. Tamuz, A. Udalski, T. Mazeh, F. Bouchy, C. Melo, D. Naef, N. C. Santos, C. Moutou, R. Diaz, W. Gieren, M. Gillon, S. Hoyer, M. Kubiak, M. Mayor, D. Minniti, G. Pietrzynski, D. Queloz, S. Ramirez, M. T. Ruiz, I. Soszynski, O. Szewczyk, M.K. Szymanski, S. Udry, K. Ulaczyk, L. Wyrzykowski, M. Zoccali (Oct 28, 2007). "A transiting planet among 23 new near-threshold candidates from the OGLE survey - OGLE-TR-182". Astronomy and Astrophysics.