Observation's detail view

CometC/2013 US10 (Catalina)
UserAquarellia
User`s name
Observation's time (UT)2015-12-30 05:20
ToolNational Geographic
Observation's placeNotre Dame la Brune
Comparison stars sourceTK - Tycho-2 Catalogue
MethodB - Bobrovnikoff`s method
Magnitude6.45
Coma diameter(')4
Tail's length0
CondensationNot set
Positional angle of tailNot set
Bortl's scaleNot set
Aperture50
Focal length (mm)Not set
Type of toolB - Binoculars
Magnification7
Field of view (°)5
SQM-L in zenith19.73
Light pollution zoneGray
Lm
CommentNice view near Arcturus, a sketch was posted Brillant moon and clear sky
Morris Format2015 Dec 30.22 UT: m1=6.45, Dia.=4', Tail: 0 deg ...50-cm B (7x) ...Deconinck Michel (Notre Dame la Brune, France)