CometC/2018 Y1 (Iwamoto)
Userjeff42
User`s namej-philippe remillieux
Observation's time (UT)2019-02-25 23:00
Toolorion equinox skywatcher
Observation's placeparc naturel régional du pilat
Magnitude8.4
Comparison stars sourceHJ - Magnitudes in the Hipparcos photometric system
MethodS - Sidgwick`s method
Coma diameter(')&8
Tail's lengthNot set
Condensation
Positional angle of tailNot set
Bortl's scale7
Aperture80 mm
Focal length (mm)500
Type of toolR - Refractor
Magnification38.5
Field of view (°)1.77
SQM-L in zenith
Light pollution zoneOrange
Lm
Comment
Morris Format2019 Feb 25.96 UT: m1=8.4, Dia.=&8' ...80-cm R (38.5x) ...j-philippe remillieux (parc naturel régional du pilat, france)