Comet17P/Holmes
UserArtom
User`s nameArtyom Novichonok
Observation's time (UT)2007-12-15 18:00:00
ToolBPC 7x50
Observation's placeKonchezero station
Magnitude3.6
Comparison stars sourceYG - Yale Bright Star Catalogue
MethodS - Sidgwick`s method
Coma diameter(')64
Tail's lengthNot set
Condensation3
Positional angle of tailNot set
Bortl's scale4
Aperture5 cm
Focal length (mm)Not set
Type of toolB - Binoculars
Magnification7
Field of view (°)6
SQM-L in zenithNot set
Light pollution zoneGreen
Lm6
Comment
Morris Format2007 Dec 15.75 UT: m1=3.6, Dia.=64', DC=3 ...5-cm B (7x) ...Artyom Novichonok (Konchezero station, Russia)