TRAPPIST-1
ultracool dwarf with seven Earth-sized planets
41 light-years from Earth
A star barely larger than Jupiter with seven rocky planets packed inside an orbit smaller than Mercury's. Three sit where liquid water is possible.
- all seven planets fit within 0.062 AU of the star
- from one planet, the others look bigger than our Moon
- kind
- star
- size
- 166,000 km across
- orbiting it
- TRAPPIST-1e