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

Estrela com 4 planetas conhecidos

AU Mic

Abrir no Ouranos

AU Mic, uma estrela M1 V, tem 4 planetas confirmados.

Medido

Distância: cerca de 31.7 anos-luz
Tipo espectral da estrela: M1 V
Planetas confirmados: 4

Distância do Sol

Sobre 31.7 anos-luz. Para atravessá-lo:

Luz31.7 anos
Velocidade da Voyager 1563,000 anos
Dirigindo a 100 km/h342 milhões 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 2020 por trânsito, velocidade radial e variações no tempo de trânsito (NASA Exoplanet Archive).

Seus planetas

AU Mic b — 4.8 times Earth's width, Neptune-sized; its year lasts 8 days; about 280 °C, hotter than boiling water; found in 2020 by transit.
AU Mic c — 2.8 times Earth's width, a 'sub-Neptune' — bigger than Earth, smaller than Neptune; its year lasts 19 days; about 150 °C, hotter than boiling water; found in 2021 by transit.
AU Mic e — 4.9 times Earth's width (estimated from its mass, not measured), Neptune-sized; its year lasts 33 days; found in 2025 by radial velocity.
AU Mic d — 1 times Earth's width (estimated from its mass, not measured), about Earth-sized — probably rocky; its year lasts 13 days; found in 2023 by transit timing variations.

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

AU Mic b — 4.8 times Earth's width, Neptune-sized; its year lasts 8 days; about 280 °C, hotter than boiling water; found in 2020 by transit.

AU Mic c — 2.8 times Earth's width, a 'sub-Neptune' — bigger than Earth, smaller than Neptune; its year lasts 19 days; about 150 °C, hotter than boiling water; found in 2021 by transit.

AU Mic e — 4.9 times Earth's width (estimated from its mass, not measured), Neptune-sized; its year lasts 33 days; found in 2025 by radial velocity.

AU Mic d — 1 times Earth's width (estimated from its mass, not measured), about Earth-sized — probably rocky; its year lasts 13 days; found in 2023 by transit timing variations.

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.