Comet46P/Wirtanen
UserJorge Luis Salas
User`s nameJorge Luis Salas
Observation's time (UT)2018-12-16 02:15
Tool 10x70
Observation's placesan diego,carabobo
Magnitude3.8
Comparison stars sourceAE - Planetary magnitudes from the American Ephemeris and Nautical Almanac
MethodM - Morris`s method
Coma diameter(')50
Tail's lengthNot set
Condensation4
Positional angle of tailNot set
Bortl's scaleNot set
Aperture7 cm
Focal length (mm)Not set
Type of toolB - Binoculars
Magnification10
Field of view (°)5
SQM-L in zenith
Light pollution zone
Lm
Comment
Morris Format2018 Dec 16.09 UT: m1=3.8, Dia.=50', DC=4 ...7-cm B (10x) ...Jorge Luis Salas (san diego,carabobo, venezuela)