COROT-2

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COROT-2
Morgan-Keenan spectral classification zoom.png

COROT-2 is a G7V class star somewhat less massive than the Sun (G2V)
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Aquila
Right ascension 19h 27m 06.496s[1]
Declination +01° 23′ 01.38″[1]
Apparent magnitude (V) 12.57[1]
Characteristics
Spectral type G7V[2]
K0V (SIMBAD)[1]
Apparent magnitude (V) ~12.57
Apparent magnitude (I) 11.49 ±0.03
Apparent magnitude (J) 10.783 ±0.028
Apparent magnitude (H) 10.44 ±0.04
Apparent magnitude (K) 10.31 ±0.03
Astrometry
Proper motion (μ) RA: -5.3[1] mas/yr
Dec.: -9.1[1] mas/yr
Distance 930 ly
(290 pc)
Details
Mass 0.97 ±0.06 M
Radius 0.902 ±0.018 R
Temperature 5625 ±120 K
Metallicity 0 ±0.1
Age ? years
Other designations
GSC 00465-01282, CoRoT-Exo-2, GSC2 N023200075, UCAC2 32263596, CoRoT 101206560, DENIS-P J192706.4+012301, 2MASS J19270649+0123013, USNO-B1.0 0913-00447544[1]
Database references
SIMBAD data
Extrasolar Planets
Encyclopaedia
data

COROT-2 is a yellow dwarf main sequence star a little cooler than the Sun. This star is located approximately 930 light-years away in the constellation of Aquila. The apparent magnitude of this star is 12, which means it is not visible to the naked eye but can be seen with a medium sized amateur telescope on a clear dark night.[1]

+ "2MASS J19270636+0122577, is a true physical companion of spectral type K9, as earlier hypothesized by Alonso et al. (2008), making CoRoT-2 a wide binary system with at least one planet. " (cf. http://www.aanda.org/index.php?option=com_article&access=standard&Itemid=129&url=/articles/aa/full_html/2012/03/aa18042-11/aa18042-11.html)

Planetary system[edit]

This star is home to exoplanet COROT-2b discovered by the COROT Mission spacecraft using the transit method.[2]

The COROT-2 planetary system
Companion
(in order from star)
Mass Semimajor axis
(AU)
Orbital period
(days)
Eccentricity Inclination Radius
b 3.31 ±0.16 MJ 0.0281 ±0.0009 1.7429964 ±1.7e-06 0

See also[edit]

References[edit]

  1. ^ a b c d e f g h "SIMBAD query result: GSC 00465-01282 -- Star". Centre de Données astronomiques de Strasbourg. Retrieved 2009-04-27. 
  2. ^ a b Alonso et al. (2008). "Transiting exoplanets from the CoRoT space mission. II. CoRoT-Exo-2b: a transiting planet around an active G star". Astronomy and Astrophysics 482 (3): L21–L24. arXiv:0803.3207. Bibcode:2008A&A...482L..21A. doi:10.1051/0004-6361:200809431. 

External links[edit]

  • "CoRot-2". Exoplanets. Retrieved 2009-04-28. 

Coordinates: Sky map 19h 27m 06.5s, +01° 23′ 01.5″