A. Borisov
B. Narisor
C. Magnsor
D. Oumuamua
Submitted by: Asad Ullah Afridi
Oumuamua is the first known interstellar object detected passing through the Solar System. Formally designated 1I/2017 U1, it was discovered by Robert Weryk using the Pan-STARRS telescope at Haleakala Observatory, Hawaii, on 19 October 2017, 40 days after it passed its closest point to the Sun on 9 September.