CometC/2013 US10 (Catalina)
UserNorm
User`s nameNeil Norman
Observation's time (UT)2016-04-05 21:21:00
ToolTelescope
Observation's placeIpswich
Magnitude9.9
Comparison stars sourceHJ - Magnitudes in the Hipparcos photometric system
MethodS - Sidgwick`s method
Coma diameter(')3
Tail's lengthNot set
Condensation1/
Positional angle of tailNot set
Bortl's scaleNot set
Aperture11.4 cm
Focal length (mm)8
Type of toolL - Newtonian reflector
MagnificationNot set
Field of view (°)Not set
SQM-L in zenith
Light pollution zone
Lm6.2
Comment
Morris Format2016 Apr 5.89 UT: m1=9.9, Dia.=3', DC=1.5 ...11.4-cm L ...Neil Norman (Ipswich, England)