CometC/2015 F3 (SWAN)
UserNorm
User`s nameNeil Norman
Observation's time (UT)2015-04-14 21:36:00
ToolTelescope
Observation's placeIpswich
Magnitude9.8
Comparison stars sourceAE - Planetary magnitudes from the American Ephemeris and Nautical Almanac
MethodS - Sidgwick`s method
Coma diameter(')3
Tail's length0
Condensation4
Positional angle of tail0
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
LmNot set
Comment
Morris Format2015 Apr 14.9 UT: m1=9.8, Dia.=3', DC=4, Tail: 0 deg, in PA 0 deg ...11.4-cm L ...Neil Norman (Ipswich, England)