CometC/2011 L4 (PANSTARRS)
UserNorm
User`s nameNeil Norman
Observation's time (UT)2013-03-30
ToolBinoculars
Observation's placeIpswich
Magnitude3
Comparison stars sourceAE - Planetary magnitudes from the American Ephemeris and Nautical Almanac
MethodM - Morris`s method
Coma diameter(')5
Tail's length3.5°
Condensation7
Positional angle of tail320
Bortl's scaleNot set
Aperture5 cm
Focal length (mm)Not set
Type of toolB - Binoculars
Magnification10
Field of view (°)6
SQM-L in zenith
Light pollution zone
LmNot set
Comment
Morris Format2013 Mar 30 UT: m1=3, Dia.=5', DC=7, Tail: 3.5 deg, in PA 320 deg ...5-cm B (10x) ...Neil Norman (Ipswich, England)