Comet 21P/Giacobini-Zinner
UserSergey-B
User`s nameSergey Bezruchenko
Observation's time (UT)2018-07-11 13:30
ToolSW DOB 200/1000
Observation's placeс.Чугуевка
Magnitude10.5
Comparison stars sourceTK - Tycho-2 Catalogue
MethodM - Morris`s method
Coma diameter(')1.5
Tail's lengthNot set
Condensation4
Positional angle of tailNot set
Bortl's scaleNot set
Aperture20 cm
Focal length (mm)1000
Type of toolL - Newtonian reflector
Magnification58.8
Field of view (°)0.88
SQM-L in zenith
Light pollution zoneGreen
Lm5
Comment
Morris Format2018 Jul 11.56 UT: m1=10.5, Dia.=1.5', DC=4 ...20-cm L (58.8x) ...Sergey Bezruchenko (с.Чугуевка, Россия)