Observation's detail view

Comet 21P/Giacobini-Zinner
UserPeter_Pskov
User`s name
Observation's time (UT)2018-08-16 21:54
ToolBresser 20x80
Observation's placeCherniakovitsi
Comparison stars sourceTK - Tycho-2 Catalogue
MethodM - Morris`s method
Magnitude7.7
Coma diameter(')3.5
Tail's length17
Condensation5
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 16.91 UT: m1=7.7, Dia.=3.5', DC=5, Tail: 17 arcmin ...8-cm B (20x) ...Petr Mitrofanov (Cherniakovitsi, Russia)