Home › Forums › Comets › C/2017 U1 (PANSTARRS). An interstellar comet? › There is indirect and rather
26 October 2017 at 7:31 pm #578674
There is indirect and rather weak evidence that some other objects may have interstellar origins but A/2017 U1 (now demoted from cometary status) has direct evidence from its strongly hyperbolic orbit. We’ve never seen anything with this kind of orbit before.