CometC/2015 F5 (SWAN-Xingming)
UserAHale
User`s nameAlan Hale
Observation's time (UT)2015-04-10 11:31:00
Tool41-cm reflector
Observation's placeCloudcroft
Magnitude9.6:
Comparison stars sourceNH - North Polar Sequence (publ. by Henden and Kaitchuck, 1982)
MethodM - Morris`s method
Coma diameter(')2
Tail's lengthNot set
Condensation4/
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 zenith
Light pollution zoneBlue
LmNot set
CommentI had to contend with low elevation, fairly bright twilight (sun at -13 degrees) and moonlight.
Morris Format2015 Apr 10.48 UT: m1=9.6:, Dia.=2', DC=4.5 ...40.64-cm L (70.3x) ...Alan Hale (Cloudcroft, U.S.A.)