CometC/2009 Y1 (Catalina)
Userslava03
User`s nameVyacheslav Ivanov
Observation's time (UT)2011-08-29 22:33:00
Tool8" Ньютон
Observation's placeПоле
Magnitude14:
Comparison stars sourceTK - Tycho-2 Catalogue
MethodS - Sidgwick`s method
Coma diameter(')0.5
Tail's lengthNot set
Condensation3
Positional angle of tailNot set
Bortl's scaleNot set
Aperture20.3 cm
Focal length (mm)1000
Type of toolL - Newtonian reflector
Magnification142.9
Field of view (°)0.57
SQM-L in zenithNot set
Light pollution zoneBlue
Lm6.6
Comment
Morris Format2011 Aug 29.94 UT: m1=14:, Dia.=0.5', DC=3 ...20.3-cm L (142.9x) ...Vyacheslav Ivanov (Поле, Russia)