2I/Borisov Comet
2I/Borisov — comet with 0.8 km nucleus. Second known interstellar object after 1I/Oumuamua. First interstellar comet. CO-rich composition differs from solar…
View in the 3D map →Data
| Nucleus size | 0.8 km |
|---|---|
| Perihelion | 1.935 AU |
| Eccentricity | 3.357 |
| Discovered | 2019 |
| Next perihelion | Never (ejected from solar system) |
| Composition | H2O ice, CO, CO2, H2, CN |
Details
Second known interstellar object after 1I/Oumuamua. First interstellar comet. CO-rich composition differs from solar system comets.
Sources / 数据来源
JPL Small-Body Database / IAU Minor Planet Center