CometC/2018 Y1 (Iwamoto)
Userjeff42
User`s namej-philippe remillieux
Observation's time (UT)2019-02-27 21:00
Toolorion equinox skywatcher
Observation's placeparc naturel régional du pilat
Magnitude8.5
Comparison stars sourceHJ - Magnitudes in the Hipparcos photometric system
MethodS - Sidgwick`s method
Coma diameter(')8
Tail's lengthNot set
Condensation1
Positional angle of tailNot set
Bortl's scale5
Aperture80 mm
Focal length (mm)500
Type of toolR - Refractor
Magnification38.5
Field of view (°)1.77
SQM-L in zenith
Light pollution zone
Lm
Comment
Morris Format2019 Feb 27.88 UT: m1=8.5, Dia.=8', DC=1 ...80-cm R (38.5x) ...j-philippe remillieux (parc naturel régional du pilat, france)