2022a1 20220107 kshima

C/2022 A1 Sarneczky

I measured its magnitude m1=17.1 by UCAC-4.

2022.01.07.62517UT, 10*60s, 40cm RC + F6 Reducer, FLI ML8300 2 bin, 80% cropping, taken in Nagano Pref., Japan.