Interstellar visitor, 2017
‘Oumuamua
The first known object from another star, spotted in 2017 on its way out. Long, thin and tumbling.
- Size
- 115 m
- Path
- Hyperbolic: passing through once
- Closest to Sun
- 0.3 AU
- Day
- 7.9 hours
Can we live on ‘Oumuamua?
Air: none to speak of. You’d live in sealed, pressurised habitats.
Ground: Unknown; reddish like organic-rich ice. Accelerated slightly, maybe from escaping hydrogen.
Atmosphere
- None to speak of
Measured by Hubble, VLT