Comet2P/Encke
UserAHale
User`s nameAlan Hale
Observation's time (UT)2013-09-15 10:47:00
Tool41-cm reflector
Observation's placeCloudcroft
Magnitude12.8
Comparison stars sourceNH - North Polar Sequence (publ. by Henden and Kaitchuck, 1982)
MethodS - Sidgwick`s method
Coma diameter(')&2
Tail's lengthNot set
Condensation1/
Positional angle of tailNot set
Bortl's scaleNot set
Aperture40.64 cm
Focal length (mm)1828.8
Type of toolL - Newtonian reflector
Magnification70.3
Field of view (°)0
SQM-L in zenithNot set
Light pollution zoneBlue
LmNot set
Comment
Morris Format2013 Sep 15.45 UT: m1=12.8, Dia.=&2', DC=1.5 ...40.64-cm L (70.3x) ...Alan Hale (Cloudcroft, U.S.A.)