Comet 21P/Giacobini-Zinner
UserFedor
User`s nameFedor Sharov
Observation's time (UT)2018-08-19 21:10
ToolSW 127MAK
Observation's placeMoscow
Magnitude7.6
Comparison stars sourceHJ - Magnitudes in the Hipparcos photometric system
MethodS - Sidgwick`s method
Coma diameter(')5
Tail's lengthNot set
Condensation5/
Positional angle of tailNot set
Bortl's scaleNot set
Aperture13 cm
Focal length (mm)1500
Type of toolM - Maksutov reflector
Magnification62.5
Field of view (°)0
SQM-L in zenith
Light pollution zone
Lm
Comment
Morris Format2018 Aug 19.88 UT: m1=7.6, Dia.=5', DC=5.5 ...13-cm M (62.5x) ...Fedor Sharov (Moscow, Russian Federation)