Astronomy:COROT-4
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| Observation data Equinox J2000.0]] (ICRS) | |
|---|---|
| Constellation | Monoceros |
| Right ascension | 06h 48m 46.7134s[1] |
| Declination | −00° 40′ 21.9695″[1] |
| Apparent magnitude (V) | 13.45[2] |
| Characteristics | |
| Spectral type | F8V[2] |
| Apparent magnitude (R) | 13.42[3] |
| Apparent magnitude (J) | 12.619 ±0.026[3] |
| Apparent magnitude (H) | 12.359 ±0.029[3] |
| Apparent magnitude (K) | 12.29 ±0.03[3] |
| R−I color index | 13.531 [0.019][3] |
| Astrometry | |
| Proper motion (μ) | RA: −3.659±0.049[1] mas/yr Dec.: −3.898±0.044[1] mas/yr |
| Parallax (π) | 1.3484 ± 0.0280[1] mas |
| Distance | 2,420 ± 50 ly (740 ± 20 pc) |
| Details | |
| Mass | 1.16+0.03−0.02[4] M☉ |
| Radius | 1.17+0.01−0.03[4] R☉ |
| Temperature | 6190 ± 60[4] K |
| Metallicity | [Fe/H] = 0 ± 0.15[2] |
| Rotation | 8.87 ± 1.12 d[5] |
| Rotational velocity (v sin i) | 6.4 ± 1.0[4] km/s |
| Age | 1+1.0−0.3 Gyr[4] years |
| Other designations | |
| Database references | |
| SIMBAD | data |
| Extrasolar Planets Encyclopaedia | data |
COROT-4 (formerly known as COROT-Exo-4[6]) is a yellow-white dwarf main-sequence star in the constellation Monoceros.[3]
Planetary system
The star is orbited by one known extrasolar planet, designated COROT-4b. It was catalogued as part of the COROT mission to find transiting planets, when a planet was spotted using the transit method.[5]
| Companion (in order from star) |
Mass | Semimajor axis (AU) |
Orbital period (days) |
Eccentricity | Inclination | Radius |
|---|---|---|---|---|---|---|
| b | 0.72 ± 0.08 MJ | 0.090 ± 0.001 | 9.20205 ± 0.00037 | 0 | — | — |
See also
- COROT
- List of extrasolar planets
References
- ↑ 1.0 1.1 1.2 1.3 1.4 Brown, A. G. A. (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics 616: A1. doi:10.1051/0004-6361/201833051. Bibcode: 2018A&A...616A...1G. Gaia DR2 record for this source at VizieR.
- ↑ 2.0 2.1 2.2 Schneider, J.. "Notes for star CoRoT-4". The Extrasolar Planets Encyclopaedia. http://exoplanet.eu/star.php?st=CoRoT-4. Retrieved 2009-03-19.
- ↑ 3.0 3.1 3.2 3.3 3.4 3.5 "CoRoT-4". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=CoRoT-4.
- ↑ 4.0 4.1 4.2 4.3 4.4 Montou, C. (2008). "Transiting exoplanets from the CoRoT space mission V. CoRoT-Exo-4b: Stellar and planetary parameters". Astronomy & Astrophysics Letters 488 (2): L47–L50. doi:10.1051/0004-6361:200810273. Bibcode: 2008A&A...488L..47M.
- ↑ 5.0 5.1 Aigrain, S. (2008). "Transiting exoplanets from the CoRoT space mission IV. CoRoT-Exo-4b: a transiting planet in a 9.2 day synchronous orbit". Astronomy & Astrophysics Letters 488 (2): L43–L46. doi:10.1051/0004-6361:200810246. Bibcode: 2008A&A...488L..43A.
- ↑ Schneider, J. (2009-03-10). "Change in CoRoT planets names". Exoplanets (Mailing list). Archived from the original on 2010-01-18. Retrieved 2009-03-19.
External links
- "CoRot-4". Exoplanets. http://media4.obspm.fr/exoplanets/base/etoile.php?nom=CoRot-4. Retrieved 2009-04-28.
Coordinates: 
06h 48m 46.70s, −00° 40′ 21.97″
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