Observation's detail view

Comet88P/Howell
Userseiichi
User`s name
Observation's time (UT)2015-09-21 17:31:00
ToolNot set
Observation's placeNot set
Comparison stars sourceTA - Comparison-star magnitudes from "The Amateur Sky Survey"
MethodS - Sidgwick`s method
Magnitude13.2
Coma diameter(')1.3
Tail's lengthNot set
Condensation2
Positional angle of tailNot set
Bortl's scaleNot set
Aperture40
Focal length (mm)1600
Type of toolL - Newtonian reflector
Magnification144
Field of view (°)Not set
SQM-L in zenithNot set
Light pollution zone
LmNot set
Comment
Morris Format2015 Sep 21.73 UT: m1=13.2, Dia.=1.3', DC=2 ...40-cm (144x) ...Seiichi Yoshida (, )