Traduzido por IA (Opus 5.5) a partir do cartão em inglês. Números, nomes e fontes não foram alterados.

Estrela com 6 planetas conhecidos

Kepler-20

Abrir no Ouranos

Kepler-20 tem 6 planetas confirmados.

Medido

Distância: cerca de 922 anos-luz
Planetas confirmados: 6

Distância do Sol

Sobre 922 anos-luz. Para atravessá-lo:

Luz922 anos
Velocidade da Voyager 116.4 milhões de anos
Dirigindo a 100 km/h9.95 bilhões de anos

Voyager 1 à velocidade com que se afastou ao longo do ano até 2026-10-25 (JPL Horizons). Dirigindo: sem parar, sem nunca reabastecer.

Como foi descoberto

Primeiro planeta descoberto em 2011 por velocidade radial e trânsito (NASA Exoplanet Archive).

Seus planetas

Kepler-20 g — 4.7 times Earth's width (estimated from its mass, not measured), Neptune-sized; its year lasts 35 days; about 250 °C, hotter than boiling water; found in 2016 by radial velocity.
Kepler-20 c — 2.9 times Earth's width, a 'sub-Neptune' — bigger than Earth, smaller than Neptune; its year lasts 11 days; about 560 °C, hotter than boiling water; found in 2011 by transit.
Kepler-20 d — 2.6 times Earth's width, a 'sub-Neptune' — bigger than Earth, smaller than Neptune; its year lasts 78 days; about 160 °C, hotter than boiling water; found in 2011 by transit.
Kepler-20 f — 1 times Earth's width, about Earth-sized — probably rocky; its year lasts 20 days; about 410 °C, hotter than boiling water; found in 2011 by transit.
Kepler-20 b — 1.8 times Earth's width, a 'sub-Neptune' — bigger than Earth, smaller than Neptune; its year lasts 4 days; about 910 °C, hotter than boiling water; found in 2011 by transit.
Kepler-20 e — 0.8 times Earth's width, about Earth-sized — probably rocky; its year lasts 6 days; about 730 °C, hotter than boiling water; found in 2011 by transit.

The NASA Exoplanet Archive's page

De onde vem isto

NASA Exoplanet Archive, Planetary Systems Composite Parameters (fetched 2026-11-02). Composite values: where a planet's size or mass was not measured, the archive estimates it from the other.
This research has made use of the NASA Exoplanet Archive, which is operated by the California Institute of Technology, under contract with NASA under the Exoplanet Exploration Program.

Todo catálogo que o Ouranos utiliza é creditado na página de créditos.

Seus planetas

Kepler-20 g — 4.7 times Earth's width (estimated from its mass, not measured), Neptune-sized; its year lasts 35 days; about 250 °C, hotter than boiling water; found in 2016 by radial velocity.

Kepler-20 c — 2.9 times Earth's width, a 'sub-Neptune' — bigger than Earth, smaller than Neptune; its year lasts 11 days; about 560 °C, hotter than boiling water; found in 2011 by transit.

Kepler-20 d — 2.6 times Earth's width, a 'sub-Neptune' — bigger than Earth, smaller than Neptune; its year lasts 78 days; about 160 °C, hotter than boiling water; found in 2011 by transit.

Kepler-20 f — 1 times Earth's width, about Earth-sized — probably rocky; its year lasts 20 days; about 410 °C, hotter than boiling water; found in 2011 by transit.

Kepler-20 b — 1.8 times Earth's width, a 'sub-Neptune' — bigger than Earth, smaller than Neptune; its year lasts 4 days; about 910 °C, hotter than boiling water; found in 2011 by transit.

Kepler-20 e — 0.8 times Earth's width, about Earth-sized — probably rocky; its year lasts 6 days; about 730 °C, hotter than boiling water; found in 2011 by transit.

De onde vem isto

NASA Exoplanet Archive, Planetary Systems Composite Parameters (fetched 2026-11-02). Composite values: where a planet's size or mass was not measured, the archive estimates it from the other.

This research has made use of the NASA Exoplanet Archive, which is operated by the California Institute of Technology, under contract with NASA under the Exoplanet Exploration Program.