Observation's detail view

Comet 21P/Giacobini-Zinner
UserPeter_Pskov
User`s name
Observation's time (UT)2018-08-10 21:41
ToolBresser 20x80
Observation's placeIzborsk
Comparison stars sourceTK - Tycho-2 Catalogue
MethodM - Morris`s method
Magnitude8.0
Coma diameter(')2.5
Tail's length7
Condensation4
Positional angle of tailNot set
Bortl's scaleNot set
Aperture8
Focal length (mm)Not set
Type of toolB - Binoculars
Magnification20
Field of view (°)3.2
SQM-L in zenith
Light pollution zoneGreen
Lm
Comment
Morris Format2018 Aug 10.9 UT: m1=8.0, Dia.=2.5', DC=4, Tail: 7 arcmin ...8-cm B (20x) ...Petr Mitrofanov (Izborsk, Russia)