21p 20180915 pjordanov

21P/Giacobini–Zinner, M35 and NGC 2158 15.09.2018 1h18 – 5h06 UT Bresser 150/750, Canon 100D, 44x60s, 1600ISO 2018 Sep 15.04 UT: m1=7.8, Dia.=2', DC=4, Tail: 6 arcmin, in PA 275 deg …15-cm L (28.8x) …P. Jordanov (Dimitrovgrad-Brod, Bulgaria) Measurement on the image: coma: 9' tail length: 30' PA ion tail: 268° PA dust tail: 275° Observer: Penko Jordanov

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