Comet 67P/Churyumov-Gerasimenko
Userseiichi
User`s nameSeiichi Yoshida
Observation's time (UT)2015-09-21 18:28:00
ToolNot set
Observation's place
Magnitude11.1
Comparison stars sourceTA - Comparison-star magnitudes from "The Amateur Sky Survey"
MethodS - Sidgwick`s method
Coma diameter(')1.6
Tail's lengthNot set
Condensation5
Positional angle of tailNot set
Bortl's scaleNot set
Aperture40 cm
Focal length (mm)1600
Type of toolL - Newtonian reflector
Magnification144
Field of view (°)Not set
SQM-L in zenithNot set
Light pollution zone
LmNot set
Comment
Morris Format2015 Sep 21.77 UT: m1=11.1, Dia.=1.6', DC=5 ...40-cm (144x) ...Seiichi Yoshida (, )