CometC/2015 F5 (SWAN-Xingming)
UserAHale
User`s nameAlan Hale
Observation's time (UT)2015-04-21 03:21:00
Tool41-cm reflector
Observation's placeCloudcroft
Magnitude10.9:
Comparison stars sourceNH - North Polar Sequence (publ. by Henden and Kaitchuck, 1982)
MethodS - Sidgwick`s method
Coma diameter(')1.5
Tail's lengthNot set
Condensation2/
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 play "dodge the clouds," although I did have some times when the sky was relatively clear.
Morris Format2015 Apr 21.14 UT: m1=10.9:, Dia.=1.5', DC=2.5 ...40.64-cm L (70.3x) ...Alan Hale (Cloudcroft, U.S.A.)