SpazeInterstellar comet, 2019
2I/Borisov
The first comet seen coming from another star system, found by amateur astronomer Gennady Borisov.
- Size
- 800 m
- Path
- Hyperbolic: passing through once
- Closest to Sun
- 2 AU
Can we live on 2I/Borisov?
Air: only a faint trace of CO, H₂O, CN, far too thin to breathe. You’d live in sealed, pressurised habitats.
Ground: Ice unusually rich in carbon monoxide.
Atmosphere
- CO
- H₂O
- CN
Measured by Hubble, ALMA