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

Estrela com 2 planetas conhecidos

HD 74698

HD 74698, uma estrela G5 V, tem 2 planetas confirmados.

Medido

Sobre 170 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 2023 por velocidade radial (NASA Exoplanet Archive).

HD 74698 b — 5.1 times Earth's width (estimated from its mass, not measured), Neptune-sized; its year lasts 15 days; about 650 °C, hotter than boiling water; found in 2023 by radial velocity.
HD 74698 c — 14 times Earth's width (estimated from its mass, not measured), a giant, Jupiter-sized or more; its year lasts about 9 Earth years; about −120 °C, below freezing; found in 2023 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 2 planetas conhecidos

HD 74698, uma estrela G5 V, tem 2 planetas confirmados.

Sobre 170 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 2023 por velocidade radial (NASA Exoplanet Archive).

HD 74698 b — 5.1 times Earth's width (estimated from its mass, not measured), Neptune-sized; its year lasts 15 days; about 650 °C, hotter than boiling water; found in 2023 by radial velocity.
HD 74698 c — 14 times Earth's width (estimated from its mass, not measured), a giant, Jupiter-sized or more; its year lasts about 9 Earth years; about −120 °C, below freezing; found in 2023 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.