CometC/2009 P1 (Garradd)
UserKirill
User`s nameKirill Grishin
Observation's time (UT)2011-08-18 23:55:00
ToolSky-Watcher Dob 8
Observation's placeTogliatti
Magnitude7.6
Comparison stars sourceTK - Tycho-2 Catalogue
MethodS - Sidgwick`s method
Coma diameter(')7
Tail's lengthNot set
Condensation6
Positional angle of tailNot set
Bortl's scaleNot set
Aperture20 cm
Focal length (mm)1200
Type of toolL - Newtonian reflector
Magnification120
Field of view (°)0.43
SQM-L in zenithNot set
Light pollution zoneRed
LmNot set
Comment
Morris Format2011 Aug 18. UT: m1=7.6, Dia.=7', DC=6 ...20-cm L (120x) ...Kirill Grishin (Togliatti, Russia)