Comet 217P/LINEAR
Usercer01
User`s nameJakub Černý
Observation's time (UT)2009-07-29 00:43:00
ToolNot set
Observation's place
Magnitude11.7
Comparison stars sourceTK - Tycho-2 Catalogue
MethodM - Morris`s method
Coma diameter(')2
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
Magnification80
Field of view (°)Not set
SQM-L in zenithNot set
Light pollution zone
LmNot set
Comment
Morris Format2009 Jul 29.03 UT: m1=11.7, Dia.=2', DC=5 ...20-cm (80x) ...Jakub Černý (, )