Observation's detail view

Comet 21P/Giacobini-Zinner
UserJerzy Bohusz
User`s name
Observation's time (UT)2018-08-03 23:02:00
ToolTNAk 250 mm
Observation's placeMyślin
Comparison stars sourceTK - Tycho-2 Catalogue
MethodS - Sidgwick`s method
Magnitude9.2
Coma diameter(')3.2
Tail's length2.5
Condensation5
Positional angle of tail230
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 3.96 UT: m1=9.2, Dia.=3.2', DC=5, Tail: 2.5 arcmin, in PA 230 deg ...25-cm L (97.9x) ...Jerzy Bohusz (Myślin, Poland)