CometC/2017 O1 (ASASSN)
UserAlexsandr Morozov
User`s nameAlexsandr Morozov
Observation's time (UT)2017-09-21 22:21
Toolтелескоп SW 130650 eq2
Observation's placeNovozybkov
Magnitude9.4
Comparison stars sourceHJ - Magnitudes in the Hipparcos photometric system
MethodS - Sidgwick`s method
Coma diameter(')4
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 zone
Lm5.95
Comment
Morris Format2017 Sep 21.93 UT: m1=9.4, Dia.=4', DC=2.5 ...13-cm L (65x) ...Alexsandr Morozov (Novozybkov, Russia)