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

Stern mit 4 bekannten Planeten

Kepler-247

In Ouranos öffnen

Kepler-247, ein K-Stern, hat 4 bestätigte Planeten.

Gemessen

Entfernung: etwa 2,165 Lichtjahre
Spektraltyp des Sterns: K
Bestätigte Planeten: 4

Entfernung von der Sonne

Über 2,160 Lichtjahre. Zum Durchqueren:

Licht2,160 Jahre
Geschwindigkeit von Voyager 138.5 Millionen Jahre
Fahrt mit 100 km/h23.4 Milliarden 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 2014 durch Transit und Transitzeitvariationen (NASA Exoplanet Archive).

Seine Planeten

Kepler-247 d — 4.5 times Earth's width, Neptune-sized; its year lasts 20 days; about 260 °C, hotter than boiling water; found in 2014 by transit.
Kepler-247 c — 4.1 times Earth's width, Neptune-sized; its year lasts 9 days; about 410 °C, hotter than boiling water; found in 2014 by transit.
KOI-884 e — 9.5 times Earth's width (estimated from its mass, not measured), Neptune-sized; its year lasts 31 days; found in 2014 by transit timing variations.
Kepler-247 b — 1.6 times Earth's width, a 'sub-Neptune' — bigger than Earth, smaller than Neptune; its year lasts 3 days; about 700 °C, hotter than boiling water; found in 2014 by transit.

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

Kepler-247 d — 4.5 times Earth's width, Neptune-sized; its year lasts 20 days; about 260 °C, hotter than boiling water; found in 2014 by transit.

Kepler-247 c — 4.1 times Earth's width, Neptune-sized; its year lasts 9 days; about 410 °C, hotter than boiling water; found in 2014 by transit.

KOI-884 e — 9.5 times Earth's width (estimated from its mass, not measured), Neptune-sized; its year lasts 31 days; found in 2014 by transit timing variations.

Kepler-247 b — 1.6 times Earth's width, a 'sub-Neptune' — bigger than Earth, smaller than Neptune; its year lasts 3 days; about 700 °C, hotter than boiling water; found in 2014 by transit.

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.