CometC/2013 US10 (Catalina)
UserJerzy Bohusz
User`s nameJerzy Bohusz
Observation's time (UT)2015-12-11 04:33:00
ToolNS1 200/f4
Observation's placeMyślin
Magnitude6.8
Comparison stars sourceTK - Tycho-2 Catalogue
MethodM - Morris`s method
Coma diameter(')5.7
Tail's lengthNot set
Condensationd4
Positional angle of tailNot set
Bortl's scaleNot set
Aperture20 cm
Focal length (mm)800
Type of toolL - Newtonian reflector
Magnification25.8
Field of view (°)3.18
SQM-L in zenith
Light pollution zone
Lm
Comment
Morris Format2015 Dec 11.19 UT: m1=6.8, Dia.=5.7', DC=4 ...20-cm L (25.8x) ...Jerzy Bohusz (Myślin, Poland)