CometC/2015 V2 (Johnson)
UserPeter_Pskov
User`s namePetr Mitrofanov
Observation's time (UT)2017-03-24 22:50
ToolSkywatcher BKP25012
Observation's placePalkino
Magnitude9.9
Comparison stars sourceTK - Tycho-2 Catalogue
MethodM - Morris`s method
Coma diameter(')3
Tail's length7'
Condensation6
Positional angle of tailNot set
Bortl's scaleNot set
Aperture25.4 cm
Focal length (mm)1200
Type of toolL - Newtonian reflector
Magnification42.9
Field of view (°)0
SQM-L in zenith
Light pollution zoneBlue
Lm
Comment
Morris Format2017 Mar 24.95 UT: m1=9.9, Dia.=3', DC=6, Tail: 7 arcmin ...25.4-cm L (42.9x) ...Petr Mitrofanov (Palkino, Russia)