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

Estrela com 4 planetas conhecidos

Kepler-247

Abrir no Ouranos

Kepler-247, uma estrela K, tem 4 planetas confirmados.

Medido

Distância: cerca de 2,165 anos-luz
Tipo espectral da estrela: K
Planetas confirmados: 4

Distância do Sol

Sobre 2,160 anos-luz. Para atravessá-lo:

Luz2,160 anos
Velocidade da Voyager 138.5 milhões de anos
Dirigindo a 100 km/h23.4 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 2014 por trânsito e variações no tempo de trânsito (NASA Exoplanet Archive).

Seus planetas

Kepler-247 d — 4.5 times Earth's width, Neptune-sized; its year lasts 20 days; about 260 °C, hotter than boiling water; found in 2014 by transit.
Kepler-247 c — 4.1 times Earth's width, Neptune-sized; its year lasts 9 days; about 410 °C, hotter than boiling water; found in 2014 by transit.
KOI-884 e — 9.5 times Earth's width (estimated from its mass, not measured), Neptune-sized; its year lasts 31 days; found in 2014 by transit timing variations.
Kepler-247 b — 1.6 times Earth's width, a 'sub-Neptune' — bigger than Earth, smaller than Neptune; its year lasts 3 days; about 700 °C, hotter than boiling water; found in 2014 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-247 d — 4.5 times Earth's width, Neptune-sized; its year lasts 20 days; about 260 °C, hotter than boiling water; found in 2014 by transit.

Kepler-247 c — 4.1 times Earth's width, Neptune-sized; its year lasts 9 days; about 410 °C, hotter than boiling water; found in 2014 by transit.

KOI-884 e — 9.5 times Earth's width (estimated from its mass, not measured), Neptune-sized; its year lasts 31 days; found in 2014 by transit timing variations.

Kepler-247 b — 1.6 times Earth's width, a 'sub-Neptune' — bigger than Earth, smaller than Neptune; its year lasts 3 days; about 700 °C, hotter than boiling water; found in 2014 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.