Comet46P/Wirtanen
UserPeter_Pskov
User`s namePetr Mitrofanov
Observation's time (UT)2018-12-05 19:00
ToolНевооруженный глаз (очки, -5 дптр).
Observation's placeCherniakovitsi
Magnitude5.4
Comparison stars sourceTK - Tycho-2 Catalogue
MethodI - Variable stars (without defocusing)
Coma diameter(')
Tail's lengthNot set
Condensation
Positional angle of tailNot set
Bortl's scaleNot set
Aperture cm
Focal length (mm)Not set
Type of toolE - Naked eye
MagnificationNot set
Field of view (°)Not set
SQM-L in zenith
Light pollution zoneGreen
Lm5.8
Comment
Morris Format2018 Dec 5.79 UT: m1=5.4...Naked Eye ...Petr Mitrofanov (Cherniakovitsi, Russia)