The first comet from outside of our own solar system, dubbed 2I/Borisov, is currently passing through at around 100,000 mph. The dusty icy core of comet Borisov is estimated at about 3,200 feet across.
Birisov’s computed orbit shows it came from elsewhere in our Milky Way galaxy, a point of origin unknown according to the Center for Near-Earth Object Studies at NASA’s Jet Propulsion Laboratory in Pasadena, California, working with the Minor Planet Center. NASA’s Hubble Space Telescope has provided the sharpest views so far, artificially colored blue in the image here to make it stand out from a galaxy it was photographed passing by.
Comet Borisov is only the second verified interstellar interloper after Oumuamua humans have ever observed. It is inspiring that an amateur astronomer made the discovery as well. It was spotted on 30 August 2019 by Gennadiy Borisov at his personal observatory MARGO using a 0.65-meter telescope he designed and built himself. What a find!
The apparent size of the comet with its cloud is about 14 times the size of the earth in this comparison from Yale university.
Our first documented alien comet is so far similar chemically to those from our own solar system. Based on its current path it will never get much closer to Earth than 300 million km. This prevents the use of radar to directly determine its size and shape. Unless it fades or disintegrates unexpectedly, Borisov should be observable until at least September 2020.
#astronomy #astronomer #aliencomet #interstellervisitor #borisov #oumuamua #strangenews #cosmicvisitor #hubble #nasa