Observation's detail view

Comet17P/Holmes
UserArtom
User`s name
Observation's time (UT)2007-10-31 21:50:00
ToolBPC 7x50
Observation's placeKondopoga
Comparison stars sourceYG - Yale Bright Star Catalogue
MethodM - Morris`s method
Magnitude2.7
Coma diameter(')12
Tail's lengthNot set
Condensation6
Positional angle of tailNot set
Bortl's scaleNot set
Aperture5
Focal length (mm)Not set
Type of toolB - Binoculars
Magnification7
Field of view (°)6
SQM-L in zenithNot set
Light pollution zoneOrange
LmNot set
CommentNaked eye DC = 8/ Low clouds suddenly there has been a gap and I hurried to the balcony - watch the comet. Perseus was close to the zenith - at about 80 degrees, which caused some inconvenience to the observations, given the balcony. Tool - BPC 7x50. I will mention some features. Core, compared with last observation stands out less clearly, and the whole comet in general, it seems somewhat dimmer. Border coma not entirely clear, but quite certain
Morris Format2007 Oct 31.91 UT: m1=2.7, Dia.=12', DC=6 ...5-cm B (7x) ...Artyom Novichonok (Kondopoga, Russia)