The object named C / 2017 U1 PANSTARRS does not appear to have originated in our solar system, in the Oört cloud, but outside it, in another system.
It is what his career suggests at least. If confirmed, then, we would be talking about the first time we identified an interstellar comet .
The first interstellar comet
Minor Planet Center astronomers have released a notice for follow-up observations C / 2017 U1 PANSTARRS which was first discovered on October 18, 2017 from the Panoramic Survey Telescope and System response (Pan-STARRS) located at the Haleakala Observatory in Hawaii.
The observations must be made fast, before it disappears, because the comet is on its way out of the Solar System .
The comet was about 30 million kilometers from Earth, and only 6 days of observations have been made . It traveled at a speed of 26 km / s, much faster than the escape velocity of the Solar System.