Comet 41P/Tuttle-Giacobini-Kresak
UserSergey-B
User`s nameSergey Bezruchenko
Observation's time (UT)2017-03-21 07:00
ToolSW DOB 200/1000
Observation's placeс.Чугуевка
Magnitude8.6
Comparison stars sourceTK - Tycho-2 Catalogue
MethodM - Morris`s method
Coma diameter(')7
Tail's lengthNot set
Condensation3/
Positional angle of tailNot set
Bortl's scaleNot set
Aperture20 cm
Focal length (mm)1000
Type of toolL - Newtonian reflector
Magnification40
Field of view (°)1.3
SQM-L in zenith
Light pollution zoneGreen
Lm4.5
Comment
Morris Format2017 Mar 21.29 UT: m1=8.6, Dia.=7', DC=3.5 ...20-cm L (40x) ...Sergey Bezruchenko (с.Чугуевка, Россия)