2017x1 20171225 kshima

C/2017 X1/PanSTARRS

This is the newest comet announced by MPEC 2017-Y45. I measured its brightness m1=18.9 by Astrometrica (UCAC-4).

2017.12.25.80912UT, 10*60s, 45cm F4.6 Reflector, FLI ML8300, 2 bin, 1/2 crop, taken at Fujimi-machi, Nagano, Japna by Kunihiro Shima.