Comet 21P/Giacobini-Zinner
UserAlexsandr Morozov
User`s nameAlexsandr Morozov
Observation's time (UT)2018-09-11 23:05
Toolтелескоп SW 10 dob
Observation's placeNovozybkov
Magnitude7.6
Comparison stars sourceHJ - Magnitudes in the Hipparcos photometric system
MethodM - Morris`s method
Coma diameter(')6
Tail's lengthNot set
Condensation5/
Positional angle of tailNot set
Bortl's scaleNot set
Aperture25.4 cm
Focal length (mm)1200
Type of toolL - Newtonian reflector
Magnification48
Field of view (°)0.83
SQM-L in zenith
Light pollution zoneGreen
Lm
Comment
Morris Format2018 Sep 11.96 UT: m1=7.6, Dia.=6', DC=5.5 ...25.4-cm L (48x) ...Alexsandr Morozov (Novozybkov, Russia)