CoRoT-4
Star in the constellation Monoceros
Observation data Epoch J2000 Equinox J2000 | |
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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 mas[1] |
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 |
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
References
- ^ a b c d e Brown, A. G. A.; et al. (Gaia collaboration) (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics. 616. A1. arXiv:1804.09365. Bibcode:2018A&A...616A...1G. doi:10.1051/0004-6361/201833051. Gaia DR2 record for this source at VizieR.
- ^ a b c Schneider, J. "Notes for star CoRoT-4". Extrasolar Planets Encyclopaedia. Archived from the original on August 19, 2009. Retrieved 2009-03-19.
- ^ a b c d e f "CoRoT-4". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2009-04-27.
- ^ a b c d e Montou, C.; et al. (2008). "Transiting exoplanets from the CoRoT space mission V. CoRoT-Exo-4b: Stellar and planetary parameters". Astronomy & Astrophysics Letters. 488 (2): L47–L50. arXiv:0807.3739. Bibcode:2008A&A...488L..47M. doi:10.1051/0004-6361:200810273. S2CID 118658022.
- ^ a b Aigrain, S.; et al. (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. arXiv:0807.3767. Bibcode:2008A&A...488L..43A. doi:10.1051/0004-6361:200810246. S2CID 115916135.
- ^ 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. Archived from the original on 2016-03-03. Retrieved 2009-04-28.
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Constellation of Monoceros
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