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EntityQ3195378· pop 10· linked from 187 articles

Also known as Kepler-20Ab, Kepler-20 b

Kepler-20b is an exoplanet orbiting Kepler-20 in a system 922 light years from Earth. It is classified as a Super-Earth, as it has a radius and mass greater than that of Earth. Its radius of about 1.87 would typically mean that it is a Mini-Neptune; but its high mass of 9.7 implies that it is an iron-rich rocky world. Along with the other four planets in the system, Kepler-20b was announced on 20 December 2011.

Key facts

Planet.name
Kepler-20b
Planet.discoverer
Kepler team
Planet.discovered
20 December 2011
Planet.discovery_method
Transit (Kepler Mission)
Planet.apsis
astron
Planet.semimajor
AU
Planet.eccentricity
<0.32
Planet.period
d
Planet.star
Kepler-20 (KOI-070)
Planet.density
g cm−3

via Wikipedia infobox

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Encyclopedic overview

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Kepler-20b is an exoplanet orbiting Kepler-20 in a system 922 light years from Earth. It is classified as a Super-Earth, as it has a radius and mass greater than that of Earth. Its radius of about 1.87 would typically mean that it is a Mini-Neptune; but its high mass of 9.7 implies that it is an iron-rich rocky world. Along with the other four planets in the system, Kepler-20b was announced on 20 December 2011.

==References==

Excerpted from Wikipedia’s “Q3195378” article, available under the CC BY-SA 4.0 licence.