Comet46P/Wirtanen
UserAlexsandr Morozov
User`s nameAlexsandr Morozov
Observation's time (UT)2019-02-10 16:22
Toolтелескоп SW 10 dob
Observation's placeNovozybkov
Magnitude9.5
Comparison stars sourceHJ - Magnitudes in the Hipparcos photometric system
MethodS - Sidgwick`s method
Coma diameter(')3
Tail's lengthNot set
Condensation1/
Positional angle of tailNot set
Bortl's scaleNot set
Aperture25.4 cm
Focal length (mm)1200
Type of toolL - Newtonian reflector
Magnification120
Field of view (°)0.42
SQM-L in zenith
Light pollution zone
Lm5.29
Comment
Morris Format2019 Feb 10.68 UT: m1=9.5, Dia.=3', DC=1.5 ...25.4-cm L (120x) ...Alexsandr Morozov (Novozybkov, Russia)