21p 20180822 pjordanov

21P/Giacobini–Zinner 22.08.2018 00h42 – 01h34 UT Bresser 150/750, Canon 100D, 51x60s, 1600ISO 2018 Aug 22.02 UT: m1=7.7, Dia.=4.5', DC=5, Tail: 10 arcmin, in PA 260 deg …15-cm L (28.8x) …P. Jordanov (Dimitrovgrad-Brod, Bulgaria) Measurement on the image: coma – 9.5' tail length – 24' tail PA° = 260°

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