Comet 78P/Gehrels
UserOutbackmanyep
User`s nameChris Wyatt
Observation's time (UT)2011-12-16 11:02:00
ToolNot set
Observation's place
Magnitude12.1
Comparison stars sourceAU - ASAS-3 V magnitudes
MethodS - Sidgwick`s method
Coma diameter(')1.5
Tail's lengthNot set
Condensation2
Positional angle of tailNot set
Bortl's scaleNot set
Aperture25 cm
Focal length (mm)1250
Type of toolL - Newtonian reflector
Magnification39
Field of view (°)Not set
SQM-L in zenithNot set
Light pollution zone
LmNot set
Comment
Morris Format2011 Dec 16.46 UT: m1=12.1, Dia.=1.5', DC=2 ...25-cm (39x) ...Chris Wyatt (, )