Comet46P/Wirtanen
UserMarco Goiato
User`s nameMarco Antonio Coelho Goiato
Observation's time (UT)2018-12-11 01:45:00
ToolNaked Eye
Observation's placeAraçatuba
Magnitude3.9
Comparison stars sourceYG - Yale Bright Star Catalogue
MethodS - Sidgwick`s method
Coma diameter(')90
Tail's lengthNot set
Condensation3/
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
Lm
Comment
Morris Format2018 Dec 11.07 UT: m1=3.9, Dia.=90', DC=3.5...Naked Eye ...Marco Antonio Coelho Goiato (Araçatuba, Brazil)