Kepler-23c

Kepler-23c is a Neptune-sized exoplanet orbiting the star Kepler-23, located in the constellation Cygnus.[3] The planet is 3.12 times wider than the Earth[2] and is 0.189 Jupiter masses.[3] The planet was discovered using data taken from Kepler spacecraft.[1] It is likely a gas giant.

Kepler-23c
Discovery
Discovered byEric B. Ford et al.[1]
Discovery date25 January 2012
Transit method
Orbital characteristics
0.099 AU (14,800,000 km)[1]
Eccentricity0.02+0.39
−0.02[2]
10.742434(39)[2] d
StarKepler-23
Physical characteristics
Mean radius
3.12 ± 0.10[2] R🜨
Mass0.189+0.033
−0.036[3] MJ

    References
    1. Ford, Eric B.; Fabrycky, Daniel C.; Steffen, Jason H.; Carter, Joshua A.; Fressin, Francois; Holman, Matthew J.; Lissauer, Jack J.; Moorhead, Althea V.; Morehead, Robert C.; Ragozzine, Darin; Rowe, Jason F.; Welsh, William F.; Allen, Christopher; Batalha, Natalie M.; Borucki, William J.; Bryson, Stephen T.; Buchhave, Lars A.; Burke, Christopher J.; Caldwell, Douglas A.; Charbonneau, David; Clarke, Bruce D.; Cochran, William D.; Désert, Jean-Michel; Endl, Michael; Everett, Mark E.; Fischer, Debra A.; Gautier, Thomas N.; Gilliland, Ron L.; Jenkins, Jon M.; et al. (2012). "Transit Timing Observations Fromkepler. Ii. Confirmation of Two Multiplanet Systems Via a Non-Parametric Correlation Analysis". The Astrophysical Journal. 750 (2): 113. arXiv:1201.5409. Bibcode:2012ApJ...750..113F. doi:10.1088/0004-637X/750/2/113. S2CID 4528963.
    2. Van Eylen, Vincent; Albrecht, Simon (2015). "Eccentricity from Transit Photometry: Small Planets in Kepler Multi-Planet Systems Have Low Eccentricities". The Astrophysical Journal. 808 (2): 126. arXiv:1505.02814. Bibcode:2015ApJ...808..126V. doi:10.1088/0004-637X/808/2/126. S2CID 14405731.
    3. "Kepler-23 c". The Extrasolar Planets Encyclopaedia. Retrieved 26 June 2017.
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