CometC/2015 X8 (NEOWISE)
UserAHale
User`s nameAlan Hale
Observation's time (UT)2015-12-18 11:45:00
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(')2.4
Tail's lengthNot set
Condensation0/
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 zoneGreen
Lm
Comment
Morris Format2015 Dec 18.49 UT: m1=12.8, Dia.=2.4', DC=0.5 ...40.64-cm L (70.3x) ...Alan Hale (Cloudcroft, U.S.A.)