description Gliese 581 e Overview
Gliese 581 e is the least massive planet in the Gliese 581 system at ~1.9 Earth masses, announced in 2009; it orbits very close to its host M-dwarf and is far too hot for habitability.
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How massive is Gliese 581 e?
Gliese 581 e has an estimated mass of about 1.9 Earth masses. It is the least massive known planet in the Gliese 581 system.
When was Gliese 581 e announced?
Gliese 581 e was announced in 2009. The announcement drew attention because the planet was relatively low-mass compared with many exoplanets known at the time.
Why is Gliese 581 e too hot for habitability?
It orbits very close to the M-dwarf Gliese 581, so it receives intense stellar heating. Its close orbit makes it a poor habitability candidate despite its mass of about 1.9 Earths.
What kind of star does Gliese 581 e orbit?
Gliese 581 e orbits Gliese 581, an M-dwarf star. The planet's close orbit around that host is the main reason it is considered too hot for habitability.
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