Kepler-20 Ab
Sign in to saveAlso 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
Wikidata facts
- Instance of
- exoplanet
- Constellation
- Lyra
- Parent body
- Kepler-20
- Diameter
- 22200
- Radius
- 0.17905
- Mass
- 0.029963
- Orbital period
- 3.69611525
Show 13 more facts
- catalog code
- Kepler-20b
- discovery method
- transit method
- time of discovery or invention
- 2012-04-00
- right ascension
- 287.69801450660000
- declination
- 42.33869426601861
- epoch
- J2000.0
- orbital eccentricity
- 0
- orbital inclination
- 87.355
- semi-major axis of an orbit
- 0.0463
- right ascension component of proper motion
- -3.976
- declination component of proper motion
- -26.959
- parallax
- 3.5103
- M sin i
- 0.029931
Sources (1)
via Wikidata · CC0
~1 min read
Encyclopedic overview
1 sectionsContents
- References
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 “Kepler-20 Ab” article, available under the CC BY-SA 4.0 licence.