Observation's detail view

CometC/2017 O1 (ASASSN)
UserPeter_Pskov
User`s name
Observation's time (UT)2017-09-24 20:08
ToolSkywatcher BKP25012
Observation's placePalkino
Comparison stars sourceTK - Tycho-2 Catalogue
MethodM - Morris`s method
Magnitude9.3
Coma diameter(')5
Tail's length3
Condensation1.5
Positional angle of tailNot set
Bortl's scaleNot set
Aperture25.4
Focal length (mm)1200
Type of toolL - Newtonian reflector
Magnification42.9
Field of view (°)0
SQM-L in zenith
Light pollution zoneBlue
Lm
Commentthe tail is visible only peripheral vision
Morris Format2017 Sep 24.84 UT: m1=9.3, Dia.=5', DC=1.5, Tail: 3 deg ...25.4-cm L (42.9x) ...Petr Mitrofanov (Palkino, Russia)