CometC/2015 V2 (Johnson)
UserJerzy Bohusz
User`s nameJerzy Bohusz
Observation's time (UT)2017-04-22 19:55:00
ToolTNAk 250 mm
Observation's placeMyślin
Magnitude8.8
Comparison stars sourceTK - Tycho-2 Catalogue
MethodM - Morris`s method
Coma diameter(')10.0
Tail's lengthNot set
Condensations4
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 Format2017 Apr 22.83 UT: m1=8.8, Dia.=10.0', DC=4 ...25-cm L (69.1x) ...Jerzy Bohusz (Myślin, Poland)