55 Cancri e
lava world · a year of 18 hours
41 light-years from Earth
Almost twice Earth's width and eight times its mass, so close to its star that its surface is probably molten rock. JWST measured its day side at about 1,500 °C, cooler than bare rock would be, a hint of a thick atmosphere perhaps breathed out by the magma.
- orbit 17.7 hours (sped up here) at 0.015 AU
- day side ~1,500 °C: hot enough to melt rock
- kind
- planet of another star
- size
- 23,900 km across
- orbits
- 55 Cancri
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