Von KI (Opus 5.5) aus der englischen Karte übersetzt. Zahlen, Namen und Quellen sind unverändert.

Stern mit 4 bekannten Planeten

Barnard's star

In Ouranos öffnen

Barnards Pfeilstern, ein M3.5-4-V-Stern, hat 4 bestätigte Planeten.

Gemessen

Entfernung: etwa 6 Lichtjahre
Spektraltyp des Sterns: M3.5-4 V
Bestätigte Planeten: 4

Entfernung von der Sonne

Über 6 Lichtjahre. Zum Durchqueren:

Licht6 Jahre
Geschwindigkeit von Voyager 1107,000 Jahre
Fahrt mit 100 km/h64.8 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 2024 durch Radialgeschwindigkeit (NASA Exoplanet Archive).

Seine Planeten

Barnard c — 0.7 times Earth's width (estimated from its mass, not measured), smaller than the Earth; its year lasts 4 days; about 130 °C, hotter than boiling water; found in 2025 by radial velocity.
Barnard b — 0.7 times Earth's width (estimated from its mass, not measured), smaller than the Earth; its year lasts 3 days; about 170 °C, hotter than boiling water; found in 2024 by radial velocity.
Barnard e — 0.6 times Earth's width (estimated from its mass, not measured), smaller than the Earth; its year lasts 7 days; about 67 °C, between freezing and boiling; found in 2025 by radial velocity.
Barnard d — 0.7 times Earth's width (estimated from its mass, not measured), smaller than the Earth; its year lasts 2 days; about 210 °C, hotter than boiling water; found in 2025 by radial velocity.

The NASA Exoplanet Archive's page

Woher das stammt

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.

Jeder Katalog, den Ouranos verwendet, wird auf der Seite mit den Quellenangaben genannt.

Seine Planeten

Barnard c — 0.7 times Earth's width (estimated from its mass, not measured), smaller than the Earth; its year lasts 4 days; about 130 °C, hotter than boiling water; found in 2025 by radial velocity.

Barnard b — 0.7 times Earth's width (estimated from its mass, not measured), smaller than the Earth; its year lasts 3 days; about 170 °C, hotter than boiling water; found in 2024 by radial velocity.

Barnard e — 0.6 times Earth's width (estimated from its mass, not measured), smaller than the Earth; its year lasts 7 days; about 67 °C, between freezing and boiling; found in 2025 by radial velocity.

Barnard d — 0.7 times Earth's width (estimated from its mass, not measured), smaller than the Earth; its year lasts 2 days; about 210 °C, hotter than boiling water; found in 2025 by radial velocity.

Woher das stammt

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.