Observation's detail view

Comet17P/Holmes
UserAHale
User`s name
Observation's time (UT)2014-09-27
Tool41-cm reflector
Observation's placeCloudcroft
Comparison stars sourceAE - Planetary magnitudes from the American Ephemeris and Nautical Almanac
MethodS - Sidgwick`s method
Magnitude13.2
Coma diameter(')1.2
Tail's lengthNot set
Condensation2
Positional angle of tailNot set
Bortl's scaleNot set
Aperture40.64
Focal length (mm)1828.8
Type of toolL - Newtonian reflector
Magnification140.7
Field of view (°)0
SQM-L in zenithNot set
Light pollution zoneBlue
LmNot set
Comment
Morris Format2014 Sep 27 UT: m1=13.2, Dia.=1.2', DC=2 ...40.64-cm L (140.7x) ...Alan Hale (Cloudcroft, U.S.A.)