26p 20231212 kshima

26P/Grigg-Skjellerup

A poor image though low altitude before dawn. I measured its magnitude m1=13.7.

2023.12.12.85198UT, 5*60s, 40cm RC + F6.5 Focal Reducer, FLI ML8300 2 bin, no cropping, taken in Nagano Pref., Japan.