The cometary activity of 2005 YB210 was pointed out by Sam Deen (May 23, 2021, comets-ml).
Discovered Appeared Not observed Appeared before discovery Not observed before discovery Returns in the future
2027 Aug. 12 2005 YB2102019 Aug. 17 2005 YB2102011 Nov. 17 2005 YB2102004 Apr. 6