Kepler-20c
{{Short description|Neptunian exoplanet orbiting Kepler-20}}
{{Infobox planet
| name = Kepler-20c
| discoverer = Kepler team
| discovered = 20 December 2011
| discovery_method = Transit (Kepler Mission)
| apsis = astron
| semimajor = {{convert|0.0930|AU|km|abbr=on}}
| eccentricity = <0.40
| period = {{val|10.854092}} d
| inclination = {{val|88.39|+0.16|-0.14}}
| star = Kepler-20 (KOI-070)
| mean_radius = {{val|3.07|+0.20|-0.31}} {{Earth radius|link=y}}
| mass = {{val|16.1|+3.3|-3.7}} {{Earth mass|link=y}}
| density = {{val|2.91|+0.85|-1.08}} g cm−3
| single_temperature = 713
}}
Kepler-20c is an exoplanet orbiting Kepler-20. It has a mass similar to Neptune but is slightly smaller. Despite being the third-closest planet to Kepler-20, it is still close to the star, meaning that it is a hot Neptune. Along with the other four planets in the system, Kepler-20c was announced on 20 December 2011.
References
{{Reflist}}
[https://web.archive.org/web/20120503214356/http://kepler.nasa.gov/Mission/discoveries/kepler20c/]
{{Kepler-20|state=uncollapsed}}
Category:Exoplanets discovered in 2011
Category:Transiting exoplanets
{{Extrasolar-planet-stub}}