CometC/2019 Y1 (ATLAS)
UserJerzy Bohusz
User`s nameJerzy Bohusz
Observation's time (UT)2020-04-12 19:55:00
ToolTNAk 250 mm
Observation's placeMyślin
Magnitude8.4
Comparison stars sourceTK - Tycho-2 Catalogue
MethodS - Sidgwick`s method
Coma diameter(')5.1
Tail's lengthNot set
Condensation4/
Positional angle of tailNot set
Bortl's scaleNot set
Aperture25 cm
Focal length (mm)1175
Type of toolL - Newtonian reflector
Magnification53.4
Field of view (°)1.22
SQM-L in zenith
Light pollution zone
Lm
Comment
Morris Format2020 Apr 12.83 UT: m1=8.4, Dia.=5.1', DC=4.5 ...25-cm L (53.4x) ...Jerzy Bohusz (Myślin, Poland)