Comet17P/Holmes
Userslava03
User`s nameVyacheslav Ivanov
Observation's time (UT)2008-01-07 20:53:00
ToolNE
Observation's placeСаратов
Magnitude4
Comparison stars sourceYG - Yale Bright Star Catalogue
MethodS - Sidgwick`s method
Coma diameter(')60
Tail's lengthNot set
Condensation1
Positional angle of tailNot set
Bortl's scaleNot set
Aperture cm
Focal length (mm)Not set
Type of toolE - Naked eye
MagnificationNot set
Field of view (°)Not set
SQM-L in zenithNot set
Light pollution zoneOrange
LmNot set
Comment
Morris Format2008 Jan 7.87 UT: m1=4, Dia.=60', DC=1...Naked Eye ...Vyacheslav Ivanov (Саратов, Russia)