CoRoT-23
CoRoT-23 is a star located in the constellation Serpens at a distance of about 1956 light-years from us. At least one planet revolves around the star.
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Serpens |
| Right ascension | 18h 39m 07.84s |
| Declination | +04° 21′ 27.91″ |
| Characteristics | |
| Evolutionary stage | main sequence star |
| Spectral type | G0V |
| Variable type | planetary transit |
| Astrometry | |
| Proper motion (μ) | RA: -2.40647 ± 0.0638291 mas/yr Dec.: -8.32188 ± 0.0606489 mas/yr |
| Parallax (π) | 0.91542 ± 0.0384639 mas |
| Details | |
| Mass | 0.95 M☉ |
| Radius | 2.11569 R☉ |
| Luminosity | 0.543517 L☉ |
| Temperature | 5426 K |
| Metallicity [Fe/H] | -0.0500 ± 0.1000 Fe dex |
| Age | 7.2 Gyr |
Characteristics
CoRoT-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.[1] The surface temperature is about 5900 kelvin.
Planetary system
One planet has been discovered orbiting CoRoT-23, CoRoT-23b. [2]
The planet may be in an unstable orbit and subject to merger with the host star in the future.[3]
| 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
- 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.
- 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.
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