CoRoT-4
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Monoceros[1] |
| Right ascension | 06h 48m 46.7134s[2] |
| Declination | −00° 40′ 21.970″[2] |
| Apparent magnitude (V) | 13.45[3] |
| Characteristics | |
| Evolutionary stage | main sequence[4] |
| Spectral type | F8V[3] |
| Apparent magnitude (R) | 13.42[5] |
| Apparent magnitude (J) | 12.619±0.026[5] |
| Apparent magnitude (H) | 12.359±0.029[5] |
| Apparent magnitude (K) | 12.29±0.03[5] |
| Astrometry | |
| Proper motion (μ) | RA: −3.659±0.049[2] mas/yr Dec.: −3.898±0.044[2] mas/yr |
| Parallax (π) | 1.3484±0.0280 mas[2] |
| Distance | 2,420 ± 50 ly (740 ± 20 pc) |
| Details | |
| Mass | 1.16+0.03 −0.02[6] M☉ |
| Radius | 1.17+0.01 −0.03[6] R☉ |
| Luminosity | 1.5[7] L☉ |
| Surface gravity (log g) | 4.42[7] cgs |
| Temperature | 6,190±60[6] K |
| Metallicity [Fe/H] | 0.00±0.15[8] dex |
| Rotation | 8.87±1.12 d[8] |
| Rotational velocity (v sin i) | 6.4±1.0[6] km/s |
| Age | 1+1.0 −0.3 Gyr[6] years |
| Other designations | |
| GSC 04800-02187, GSC2 S1002103169, UCAC2 31467163, CoRoT-Exo-4, 2MASS J06484671-0040219, USNO-B1.0 0893-00105986[5] | |
| Database references | |
| SIMBAD | data |
CoRoT-4 (formerly known as CoRoT-Exo-4[9]) is a yellow-white dwarf main-sequence star in the constellation Monoceros.
Planetary system
[edit]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.[8]
| 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
[edit]References
[edit]- ^ Roman, Nancy G. (1987). "Identification of a constellation from a position". Publications of the Astronomical Society of the Pacific. 99 (617): 695. Bibcode:1987PASP...99..695R. doi:10.1086/132034. Constellation record for this object at VizieR.
- ^ 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 Schneider, J. "Notes for star CoRoT-4". Extrasolar Planets Encyclopaedia. Archived from the original on August 19, 2009. Retrieved 2009-03-19.
- ^ Lanza, A. F.; Aigrain, S.; Messina, S.; Leto, G.; Pagano, I.; Auvergne, M.; Baglin, A.; Barge, P.; Bonomo, A. S.; Collier Cameron, A.; Cutispoto, G.; Deleuil, M.; De Medeiros, J. R.; Foing, B.; Moutou, C. (2009). "Photospheric activity and rotation of the planet-hosting star CoRoT-4a". Astronomy and Astrophysics. 506 (1): 255. arXiv:0901.4618. Bibcode:2009A&A...506..255L. doi:10.1051/0004-6361/200811487.
- ^ a b c d e "CoRoT-4". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2009-04-27.
- ^ a b c d e Moutou, C.; et al. (2008). "Transiting exoplanets from the CoRoT space mission. V. CoRoT-Exo-4b: Stellar and planetary parameters". Astronomy and Astrophysics. 488 (2): L47 – L50. arXiv:0807.3739. Bibcode:2008A&A...488L..47M. doi:10.1051/0004-6361:200810273.
- ^ a b Stassun, Keivan G.; et al. (2019). "The Revised TESS Input Catalog and Candidate Target List". The Astronomical Journal. 158 (4): 138. arXiv:1905.10694. Bibcode:2019AJ....158..138S. doi:10.3847/1538-3881/ab3467.
- ^ a b c 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 and Astrophysics. 488 (2): L43 – L46. arXiv:0807.3767. Bibcode:2008A&A...488L..43A. doi:10.1051/0004-6361:200810246.
- ^ 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
[edit]- "CoRot-4". Exoplanets. Archived from the original on 2016-03-03. Retrieved 2009-04-28.
