2I/Borisov
CategoryComet
SystemInterstellar Space
Diameter1 km
About 2I/Borisov
The first confirmed interstellar comet, discovered in August 2019 by amateur Gennady Borisov. Only the second interstellar object ever detected after Oumuamua. Contained more carbon monoxide than any comet born in our solar system. Broke apart during its 2019 perihelion passage. Proved that small bodies constantly drift between stars.
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