Observation's detail view

Comet 21P/Giacobini-Zinner
UserJerzy Bohusz
User`s name
Observation's time (UT)2018-08-01 20:24:00
ToolTNAk 250 mm
Observation's placeMyślin
Comparison stars sourceTK - Tycho-2 Catalogue
MethodS - Sidgwick`s method
Magnitude9.5
Coma diameter(')3.9
Tail's length4.5
Condensation5
Positional angle of tail220
Bortl's scaleNot set
Aperture25
Focal length (mm)1175
Type of toolL - Newtonian reflector
Magnification97.9
Field of view (°)0.51
SQM-L in zenith
Light pollution zone
Lm
Comment
Morris Format2018 Aug 1.85 UT: m1=9.5, Dia.=3.9', DC=5, Tail: 4.5 arcmin, in PA 220 deg ...25-cm L (97.9x) ...Jerzy Bohusz (Myślin, Poland)