Comet 21P/Giacobini-Zinner
Userancv2000
User`s nameAnton Tsvetkov
Observation's time (UT)2018-08-17 19:50:00
ToolYukon
Observation's placeZavolzhye
Magnitude8.0
Comparison stars sourceTK - Tycho-2 Catalogue
MethodS - Sidgwick`s method
Coma diameter(')8
Tail's lengthNot set
Condensation
Positional angle of tailNot set
Bortl's scaleNot set
Aperture5 cm
Focal length (mm)Not set
Type of toolN - Monocular
Magnification30
Field of view (°)2.3
SQM-L in zenith
Light pollution zone
Lm
Comment
Morris Format2018 Aug 17.83 UT: m1=8.0, Dia.=8' ...5-cm N (30x) ...Anton Tsvetkov (Zavolzhye, Russia)