Comet 38P/Stephan-Oterma
UserAlexsandr Morozov
User`s nameAlexsandr Morozov
Observation's time (UT)2018-09-17 00:25
Toolтелескоп SW 10 dob
Observation's placeSukhinichi
Magnitude12.4
Comparison stars sourceHJ - Magnitudes in the Hipparcos photometric system
MethodM - Morris`s method
Coma diameter(')1
Tail's lengthNot set
Condensation3
Positional angle of tailNot set
Bortl's scaleNot set
Aperture25.4 cm
Focal length (mm)1200
Type of toolL - Newtonian reflector
Magnification120
Field of view (°)0.42
SQM-L in zenith
Light pollution zoneGreen
Lm6.44
Comment
Morris Format2018 Sep 17.02 UT: m1=12.4, Dia.=1', DC=3 ...25.4-cm L (120x) ...Alexsandr Morozov (Sukhinichi, Russia)