Comet 41P/Tuttle-Giacobini-Kresak
UserPeter_Pskov
User`s namePetr Mitrofanov
Observation's time (UT)2017-03-22 20:00
ToolBresser 20x80
Observation's placePalkino
Magnitude7.1
Comparison stars sourceTK - Tycho-2 Catalogue
MethodM - Morris`s method
Coma diameter(')20
Tail's lengthNot set
Condensation2
Positional angle of tailNot set
Bortl's scaleNot set
Aperture8 cm
Focal length (mm)Not set
Type of toolB - Binoculars
Magnification20
Field of view (°)3.2
SQM-L in zenith
Light pollution zoneBlue
Lm
Comment
Morris Format2017 Mar 22.83 UT: m1=7.1, Dia.=20', DC=2 ...8-cm B (20x) ...Petr Mitrofanov (Palkino, Russia)