Comet 64P/Swift-Gehrels
UserJerzy Bohusz
User`s nameJerzy Bohusz
Observation's time (UT)2018-12-05 20:09:00
ToolTNAk 250 mm
Observation's placeMyślin
Magnitude9.3
Comparison stars sourceTK - Tycho-2 Catalogue
MethodS - Sidgwick`s method
Coma diameter(')6.0
Tail's lengthNot set
Condensation3
Positional angle of tailNot set
Bortl's scaleNot set
Aperture25 cm
Focal length (mm)1175
Type of toolL - Newtonian reflector
Magnification69.1
Field of view (°)0.94
SQM-L in zenith
Light pollution zone
Lm
Comment
Morris Format2018 Dec 5.84 UT: m1=9.3, Dia.=6.0', DC=3 ...25-cm L (69.1x) ...Jerzy Bohusz (Myślin, Poland)