Interstellar object · 1I
'Oumuamua
Lengthup to ~400 m
Discovered19 Oct 2017, Pan-STARRS1
Eccentricity1.2 (unbound)
Peak speed87.3 km/s
The first known interstellar object to visit the Solar System.
Highly elongated, perhaps 10 times as long as it is wide; it is heading toward Pegasus.
Sources
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