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CoRoT-23 is a main-sequence star located in the constellation Serpens at a distance of about 1956 light-years from the Earth. At least one planet revolves around the star.
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Serpens |
| Right ascension | 18h 39m 07.8405s[1] |
| Declination | +04° 21′ 28.034″[1] |
| Apparent magnitude (V) | 15.63[2] |
| Characteristics | |
| Evolutionary stage | main sequence star |
| Spectral type | G0V[2] |
| Variable type | planetary transit |
| Astrometry | |
| Proper motion (μ) | RA: -2.390[1] mas/yr Dec.: -8.306[1] mas/yr |
| Parallax (π) | 0.9569 ± 0.0329 mas[1] |
| Distance | 3,400 ± 100 ly (1,050 ± 40 pc) |
| Details[2] | |
| Mass | 1.14 ± 0.08 M☉ |
| Radius | 1.61 ± 0.18 R☉ |
| Surface gravity (log g) | 4.3 ± 0.2 cgs |
| Temperature | 5900 ± 100 K |
| Metallicity [Fe/H] | 0.05 ± 0.1 dex |
| Rotation | 9.2 ± 1.5 d |
| Rotational velocity (v sin i) | 9.0 ± 1 km/s |
| Age | 7.2+1 −1.5 Gyr |
| Other designations | |
| Database references | |
| SIMBAD | data |
Characteristics
editCoRoT-23 is a yellow dwarf main sequence star similar to our Sun. Its solar mass is 1.098 and its solar radius is 0.86.[3] The surface temperature is about 5900 kelvin.
Planetary system
editOne planet has been discovered orbiting CoRoT-23, CoRoT-23b.[4]
The planet may be in an unstable orbit and subject to merger with the host star in the future.[2]
| Companion (in order from star) |
Mass | Semimajor axis (AU) |
Orbital period (days) |
Eccentricity | Inclination | Radius |
|---|---|---|---|---|---|---|
| b | 2.8 MJ | 0.0477 | 3.6314 | 0.16 | — | — |
References
edit- ^ a b c d e f "CoRoT-23". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2024-10-24.
- ^ a b c d Rouan, D.; et al. (2012). "Transiting exoplanets from the CoRoT space mission . XIX. CoRoT-23b: A dense hot Jupiter on an eccentric orbit". Astronomy and Astrophysics. 537: A54. arXiv:1112.0584. Bibcode:2012A&A...537A..54R. doi:10.1051/0004-6361/201117916. S2CID 55219945.
- ^ E. Plavalova (2011-08-17). "Taxonomy of the Extrasolar Planet". Astrobiology. 12 (4): 361–369. arXiv:1106.0635. doi:10.1089/ast.2011.0708. PMID 22506608. S2CID 36142931.
- ^ "CoRoT-23 Planets in the system". Retrieved February 25, 2019.
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