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
WASP-47 c hat eine Gleichgewichtstemperatur zwischen −50 und +50 °C.
Wie er entdeckt wurde
Erster Planet, entdeckt 2012 durch Transit und Radialgeschwindigkeit (NASA Exoplanet Archive).
Seine Planeten
WASP-47 b — 13 times Earth's width, a giant, Jupiter-sized or more; its year lasts 4 days; about 1,000 °C, hot enough to melt rock; found in 2012 by transit.
WASP-47 c — about 450 times Earth's mass; its year lasts 590 days; about −26 °C, below freezing; found in 2015 by radial velocity.
WASP-47 d — 3.7 times Earth's width, a 'sub-Neptune' — bigger than Earth, smaller than Neptune; its year lasts 9 days; about 610 °C, hotter than boiling water; found in 2015 by transit.
WASP-47 e — 1.8 times Earth's width, a 'sub-Neptune' — bigger than Earth, smaller than Neptune; its year lasts 19 hours; about 1,700 °C, hot enough to melt rock; found in 2015 by transit.
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.