21p 20180912 pjordanov

21P/Giacobini–Zinner

12.09.2018 0h26m – 1h18m UT
Bresser 150/750, Canon 100D, 51x60s, 1600ISO

2018 Sep 12.01 UT: m1=7.0, Dia.=4', DC=5, Tail: 12 arcmin, in PA 270 deg …15-cm L (28.8x) …P. Jordanov (Dimitrovgrad-Brod, Bulgaria)

Measurement on the image:
coma: 5'
tail length: 47'
PA = 275°