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

Estrela com 3 planetas conhecidos

HD 50554

HD 50554, uma estrela F8 V, tem 3 planetas confirmados.

Medido

Sobre 102 anos-luz. Para atravessá-lo:

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

Primeiro planeta descoberto em 2002 por trânsito e velocidade radial (NASA Exoplanet Archive).

HD 50554 c — 1.3 times Earth's width, about Earth-sized — probably rocky; its year lasts 6 days; about 820 °C, hotter than boiling water; found in 2026 by transit.
HD 50554 d — 1.4 times Earth's width, about Earth-sized — probably rocky; its year lasts 28 days; about 380 °C, hotter than boiling water; found in 2026 by transit.
HD 50554 b — 13 times Earth's width (estimated from its mass, not measured), a giant, Jupiter-sized or more; its year lasts about 3 Earth years; about −80 °C, below freezing; found in 2002 by radial velocity.

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.

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

Estrela com 3 planetas conhecidos

HD 50554, uma estrela F8 V, tem 3 planetas confirmados.

Sobre 102 anos-luz. Para atravessá-lo:

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

Primeiro planeta descoberto em 2002 por trânsito e velocidade radial (NASA Exoplanet Archive).

HD 50554 c — 1.3 times Earth's width, about Earth-sized — probably rocky; its year lasts 6 days; about 820 °C, hotter than boiling water; found in 2026 by transit.
HD 50554 d — 1.4 times Earth's width, about Earth-sized — probably rocky; its year lasts 28 days; about 380 °C, hotter than boiling water; found in 2026 by transit.
HD 50554 b — 13 times Earth's width (estimated from its mass, not measured), a giant, Jupiter-sized or more; its year lasts about 3 Earth years; about −80 °C, below freezing; found in 2002 by radial velocity.

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.