K2-138b
Template:Planetbox begin Template:Planetbox star Template:Planetbox orbit Template:Planetbox character Template:Planetbox discovery Template:Planetbox end K2-138b is a potentially rocky Super-Earth exoplanet orbiting every 2 days around a K1V star. The planet, along with the four others in the system, was found by citizen scientists of the Exoplanet Explorers project on Zooniverse. It was the final planet found in the system and was officially announced on January 8, 2018.
K2-138b is the smallest planet of K2-138 with a radius of 1.57 R🜨, meaning it could be rocky. It orbits its host star every 2.35 days at a distance of 0.0338 AU. At this proximity, the planet is likely very hot and receives 486 times the stellar flux as Earth.[1][2]
The K2-138 system is unique for being the first exoplanet system discovered entirely by citizen scientists.[3][4][5]
See also
References
- ^ Christiansen, Jessie L.; Crossfield, Ian J. M.; Barentsen, Geert; Lintott, Chris J.; Barclay, Thomas; Simmons, Brooke D.; Petigura, Erik; Schlieder, Joshua E.; Dressing, Courtney D.; Vanderburg, Andrew; Allen, Campbel; McMaster, Adam; Miller, Grant; Veldthuis, Martin; Allen, Sarah; Wolfenbarger, Zach; Cox, Brian; Zemiro, Julia; Howard, Andrew W.; Livingston, John; Sinukoff, Evan; Catron, Timothy; Grey, Andrew; Kusch, Joshua J. E.; Terentev, Ivan; Vales, Martin; Kristiansen, Martti H. (11 January 2018). "The K2-138 System: A Near-Resonant Chain of Five Sub-Neptune Planets Discovered by Citizen Scientists". The Astronomical Journal. 155 (2): 57. arXiv:1801.03874. Bibcode:2018AJ....155...57C. doi:10.3847/1538-3881/aa9be0.
{{cite journal}}: CS1 maint: unflagged free DOI (link) - ^ "K2-138 b". exoplanetarchive.ipac.caltech.edu.
- ^ "Five-Exoplanet System Discovered Thanks to Citizen Scientists".
- ^ "Citizen Scientists Discover Five-Planet System - Caltech".
- ^ Daley, Jason. "Citizen Scientists Discover an Unusual Five-Planet Solar System".