Observation's detail view

Comet 21P/Giacobini-Zinner
UserPeter_Pskov
User`s name
Observation's time (UT)2018-09-15 01:30
ToolBresser 20x80
Observation's placeCherniakovitsi
Comparison stars sourceTK - Tycho-2 Catalogue
MethodM - Morris`s method
Magnitude7.8
Coma diameter(')6
Tail's length17
Condensation3.5
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
Lm6.0
Comment
Morris Format2018 Sep 15.06 UT: m1=7.8, Dia.=6', DC=3.5, Tail: 17 arcmin ...8-cm B (20x) ...Petr Mitrofanov (Cherniakovitsi, Russia)