CometC/2018 Y1 (Iwamoto)
UserAlexsandr Morozov
User`s nameAlexsandr Morozov
Observation's time (UT)2019-04-21 19:01
Toolтелескоп SW 10 dob
Observation's placeNovozybkov
Magnitude12.1
Comparison stars sourceHJ - Magnitudes in the Hipparcos photometric system
MethodS - Sidgwick`s method
Coma diameter(')1.6
Tail's lengthNot set
Condensation1/
Positional angle of tailNot set
Bortl's scaleNot set
Aperture25.4 cm
Focal length (mm)1200
Type of toolL - Newtonian reflector
Magnification190.5
Field of view (°)0.24
SQM-L in zenith
Light pollution zoneGreen
Lm6.48
Comment
Morris Format2019 Apr 21.79 UT: m1=12.1, Dia.=1.6', DC=1.5 ...25.4-cm L (190.5x) ...Alexsandr Morozov (Novozybkov, Russia)