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

Stern mit 4 bekannten Planeten

GJ 3293

In Ouranos öffnen

GJ 3293, ein M2.5-Stern, hat 4 bestätigte Planeten.

Gemessen

Entfernung: etwa 65.9 Lichtjahre
Spektraltyp des Sterns: M2.5
Bestätigte Planeten: 4

Entfernung von der Sonne

Über 65.9 Lichtjahre. Zum Durchqueren:

Licht65.9 Jahre
Geschwindigkeit von Voyager 11.17 Millionen Jahre
Fahrt mit 100 km/h711 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.

Fakten

GJ 3293 b und GJ 3293 d haben eine Gleichgewichtstemperatur zwischen −50 und +50 °C.

Wie er entdeckt wurde

Erster Planet, entdeckt 2015 durch Radialgeschwindigkeit (NASA Exoplanet Archive).

Seine Planeten

GJ 3293 b — 5.2 times Earth's width (estimated from its mass, not measured), Neptune-sized; its year lasts 31 days; about 8 °C, between freezing and boiling; found in 2015 by radial velocity.
GJ 3293 d — 2.7 times Earth's width (estimated from its mass, not measured), a 'sub-Neptune' — bigger than Earth, smaller than Neptune; its year lasts 48 days; about −32 °C, below freezing; found in 2017 by radial velocity.
GJ 3293 c — 4.9 times Earth's width (estimated from its mass, not measured), Neptune-sized; its year lasts 120 days; about −96 °C, below freezing; found in 2015 by radial velocity.
GJ 3293 e — 1.6 times Earth's width (estimated from its mass, not measured), a 'sub-Neptune' — bigger than Earth, smaller than Neptune; its year lasts 13 days; about 98 °C, between freezing and boiling; found in 2017 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

GJ 3293 b — 5.2 times Earth's width (estimated from its mass, not measured), Neptune-sized; its year lasts 31 days; about 8 °C, between freezing and boiling; found in 2015 by radial velocity.

GJ 3293 d — 2.7 times Earth's width (estimated from its mass, not measured), a 'sub-Neptune' — bigger than Earth, smaller than Neptune; its year lasts 48 days; about −32 °C, below freezing; found in 2017 by radial velocity.

GJ 3293 c — 4.9 times Earth's width (estimated from its mass, not measured), Neptune-sized; its year lasts 120 days; about −96 °C, below freezing; found in 2015 by radial velocity.

GJ 3293 e — 1.6 times Earth's width (estimated from its mass, not measured), a 'sub-Neptune' — bigger than Earth, smaller than Neptune; its year lasts 13 days; about 98 °C, between freezing and boiling; found in 2017 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.