HD 158259, ein G0-Stern, hat 5 bestätigte Planeten.
Gemessen
Entfernung
etwa 88.2 Lichtjahre
Spektraltyp des Sterns
G0
Bestätigte Planeten
5
Entfernung von der Sonne
Über 88.2 Lichtjahre. Zum Durchqueren:
Licht88.2 Jahre
Geschwindigkeit von Voyager 11.57 Millionen Jahre
Fahrt mit 100 km/h952 Millionen Jahre
Voyager 1 mit der Geschwindigkeit, mit der sie sich im Jahr bis 2026-10-25 nach außen bewegte (JPL Horizons). Fahrt: ohne Pause, ohne je nachzutanken.
Wie er entdeckt wurde
Erster Planet, entdeckt 2020 durch Radialgeschwindigkeit (NASA Exoplanet Archive).
Seine Planeten
HD 158259 d — 2.2 times Earth's width (estimated from its mass, not measured), a 'sub-Neptune' — bigger than Earth, smaller than Neptune; its year lasts 5 days; found in 2020 by radial velocity.
HD 158259 b — 1.3 times Earth's width, about Earth-sized — probably rocky; its year lasts 2 days; about 1,200 °C, hot enough to melt rock; found in 2020 by radial velocity.
HD 158259 c — 2.2 times Earth's width (estimated from its mass, not measured), a 'sub-Neptune' — bigger than Earth, smaller than Neptune; its year lasts 3 days; found in 2020 by radial velocity.
HD 158259 e — 2.3 times Earth's width (estimated from its mass, not measured), a 'sub-Neptune' — bigger than Earth, smaller than Neptune; its year lasts 8 days; found in 2020 by radial velocity.
HD 158259 f — 2.4 times Earth's width (estimated from its mass, not measured), a 'sub-Neptune' — bigger than Earth, smaller than Neptune; its year lasts 12 days; found in 2020 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.