CometC/2017 O1 (ASASSN)
UserAlexsandr Morozov
User`s nameAlexsandr Morozov
Observation's time (UT)2017-10-20 02:06
Toolтелескоп SW 130650 eq2
Observation's placeNovozybkov
Magnitude9.9
Comparison stars sourceHJ - Magnitudes in the Hipparcos photometric system
MethodS - Sidgwick`s method
Coma diameter(')5
Tail's lengthNot set
Condensation2/
Positional angle of tailNot set
Bortl's scaleNot set
Aperture13 cm
Focal length (mm)650
Type of toolL - Newtonian reflector
Magnification65
Field of view (°)0.77
SQM-L in zenith
Light pollution zoneGreen
Lm6.14
Comment
Morris Format2017 Oct 20.09 UT: m1=9.9, Dia.=5', DC=2.5 ...13-cm L (65x) ...Alexsandr Morozov (Novozybkov, Russia)