Traducido por IA (Opus 5.5) a partir de la ficha en inglés. Los números, nombres y fuentes no se han modificado.

Estrella con 5 planetas conocidos

HD 40307

Abrir en Ouranos

HD 40307, una estrella K2.5 V, tiene 5 planetas confirmados.

Medido

Distancia: unos 42.2 años luz
Tipo espectral de la estrella: K2.5 V
Planetas confirmados: 5

Distancia al Sol

Acerca de 42.2 años luz. Para cruzarlo:

Luz42.2 años
Velocidad de la Voyager 1750,000 años
Conduciendo a 100 km/h455 millones de años

La Voyager 1 a la velocidad con la que se alejó durante el año hasta 2026-10-25 (JPL Horizons). Conduciendo: sin parar, sin repostar nunca.

Datos

HD 40307 g tiene una temperatura de equilibrio de entre −50 y +50 °C.

Cómo se descubrió

Primer planeta descubierto en 2009, por velocidad radial (NASA Exoplanet Archive).

Sus planetas

HD 40307 f — 2.1 times Earth's width (estimated from its mass, not measured), a 'sub-Neptune' — bigger than Earth, smaller than Neptune; its year lasts 52 days; about 130 °C, hotter than boiling water; found in 2013 by radial velocity.
HD 40307 d — about 1,800 times Earth's mass; its year lasts 20 days; about 270 °C, hotter than boiling water; found in 2009 by radial velocity.
HD 40307 g — 2.6 times Earth's width (estimated from its mass, not measured), a 'sub-Neptune' — bigger than Earth, smaller than Neptune; its year lasts 200 days; about −18 °C, below freezing; found in 2013 by radial velocity.
HD 40307 b — about 1,200 times Earth's mass; its year lasts 4 days; about 640 °C, hotter than boiling water; found in 2009 by radial velocity.
HD 40307 c — about 1,900 times Earth's mass; its year lasts 10 days; about 420 °C, hotter than boiling water; found in 2009 by radial velocity.

The NASA Exoplanet Archive's page

De dónde proceden estos datos

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.

Todos los catálogos que usa Ouranos se citan en la página de créditos.

Sus planetas

HD 40307 f — 2.1 times Earth's width (estimated from its mass, not measured), a 'sub-Neptune' — bigger than Earth, smaller than Neptune; its year lasts 52 days; about 130 °C, hotter than boiling water; found in 2013 by radial velocity.

HD 40307 d — about 1,800 times Earth's mass; its year lasts 20 days; about 270 °C, hotter than boiling water; found in 2009 by radial velocity.

HD 40307 g — 2.6 times Earth's width (estimated from its mass, not measured), a 'sub-Neptune' — bigger than Earth, smaller than Neptune; its year lasts 200 days; about −18 °C, below freezing; found in 2013 by radial velocity.

HD 40307 b — about 1,200 times Earth's mass; its year lasts 4 days; about 640 °C, hotter than boiling water; found in 2009 by radial velocity.

HD 40307 c — about 1,900 times Earth's mass; its year lasts 10 days; about 420 °C, hotter than boiling water; found in 2009 by radial velocity.

De dónde proceden estos datos

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.