P/2007 B1 Christensen

P/2007 B1 Christensen 2021 February 14 21.12 UT, 11x150sec. 11" f=2.2 RASA QHY600 Michael Jäger
P/2007 B1 Christensen 2021 January 10 05:32 UT, 3x600s, m=19.6, 11" SCT f/6.4, STF-8300M, Mike Olason, Tucson Arizona