CometC/2009 P1 (Garradd)
UserKirill
User`s nameKirill Grishin
Observation's time (UT)2011-09-19 18:43:00
ToolSky-Watcher Dob 8
Observation's placeTogliatti
Magnitude7.1
Comparison stars sourceTK - Tycho-2 Catalogue
MethodS - Sidgwick`s method
Coma diameter(')15.1
Tail's lengthNot set
Condensation5
Positional angle of tailNot set
Bortl's scaleNot set
Aperture20 cm
Focal length (mm)1200
Type of toolL - Newtonian reflector
Magnification48
Field of view (°)1.08
SQM-L in zenithNot set
Light pollution zone
LmNot set
Comment
Morris Format2011 Sep 19.78 UT: m1=7.1, Dia.=15.1', DC=5 ...20-cm L (48x) ...Kirill Grishin (Togliatti, Russia)