CometC/2009 P1 (Garradd)
Userslava03
User`s nameVyacheslav Ivanov
Observation's time (UT)2012-02-19 23:17:00
Tool"Мицар"
Observation's placeСаратов
Magnitude7
Comparison stars sourceTK - Tycho-2 Catalogue
MethodS - Sidgwick`s method
Coma diameter(')10
Tail's length0.25°
Condensation5
Positional angle of tail100
Bortl's scaleNot set
Aperture110 cm
Focal length (mm)805.85
Type of toolL - Newtonian reflector
Magnification115.1
Field of view (°)0.71
SQM-L in zenithNot set
Light pollution zoneOrange
LmNot set
Comment
Morris Format2012 Feb 19.97 UT: m1=7, Dia.=10', DC=5, Tail: 0.25 deg, in PA 100 deg ...110-cm L (115.1x) ...Vyacheslav Ivanov (Саратов, Russia)