CometC/2013 US10 (Catalina)
Userseiichi
User`s nameSeiichi Yoshida
Observation's time (UT)2016-05-04 11:16:00
ToolNot set
Observation's place
Magnitude11.9
Comparison stars sourceTA - Comparison-star magnitudes from "The Amateur Sky Survey"
MethodS - Sidgwick`s method
Coma diameter(')1.4
Tail's lengthNot set
Condensation2
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 Format2016 May 4.47 UT: m1=11.9, Dia.=1.4', DC=2 ...40-cm (144x) ...Seiichi Yoshida (, )