克卜勒20e

Also known as Kepler-20Ae

Kepler-20e is an exoplanet orbiting Kepler-20. The planet is notable as it is the first planet with a smaller radius than Earth found orbiting a Sun-like star. The planet is second-closest to the star after Kepler-20b, and at , it is far too hot to have liquid water on its surface. Along with the other four planets in the system, Kepler-20e was announced on 20 December 2011.

Astronomical data · SIMBAD

Object type: Pl
Distance: 934 light-years
Coordinates: RA 287.6980° · Dec 42.3387°

View on SIMBAD →

via SIMBAD · CDS Strasbourg

Key facts

Planet.name: Kepler-20e
Planet.image: Kepler-20e_Planet.jpg
Planet.caption: An artist's depiction of Kepler-20e
Planet.discoverer: Kepler team
Planet.discovered: 20 December 2011
Planet.discovery_method: Transit (Kepler Mission)
Planet.apsis: astron
Planet.eccentricity: <0.28
Planet.period: 6.098493 d
Planet.star: Kepler-20 (KOI-070)
Planet.mass: 0.39-1.67

via Wikipedia infobox

Exoplanet data

Host star: Kepler-20
Discovered: 2011
Discovered by: Kepler
Orbital period: 6.10 days
Radius: 0.82 × Earth
Mass: 0.76 × Earth
Equilibrium temp: 1004 K
Distance: 282.56 pc

via NASA Exoplanet Archive

Wikidata facts

Constellation: Lyra
Parent body: Kepler-20
Diameter: 14000
Radius: 0.06994
Mass: 0.01
Orbital period: 6.09852281
Image: Kepler-20e Planet.jpg

Show 15 more facts

catalog code: Kepler-20e
discovery method: transit method
time of discovery or invention: 2012-02-00
Commons category: Kepler-20 e
discoverer or inventor: Kepler Space Telescope
right ascension: 287.69801450660000
declination: 42.33869426601861
epoch: J2000.0
semi-major axis of an orbit: 0.064
orbital inclination: 87.632
angular distance: 0.000175
right ascension component of proper motion: -3.976
declination component of proper motion: -26.959
parallax: 3.5103
orbital eccentricity: 0

Sources (1)

wikidata.org

via Wikidata · CC0

Article · 中文

克卜勒20e（Kepler-20e）是一顆圍繞著恆星克卜勒20公轉的太陽系外行星。它距離太陽大約950光年，位於天琴座。克卜勒20e的半徑略小於地球和金星。它和另一顆類似地球體積的行星克卜勒20f一同被發現，這項成果於2011年12月20日公佈。從熱木星到熱海王星，再到超級地球，一些體積近似於地球的天體已被證實存在於類似太陽的恆星周圍。這是首顆被發現體積比地球小的太陽系外行星。

Abstract from DBpedia / Wikipedia · CC BY-SA