Comet 12P/Pons-Brooks
UserAlexsandr Morozov
User`s nameAlexsandr Morozov
Observation's time (UT)2023-07-21 22:20
Toolтелескоп SW 10 dob
Observation's placeNovozybkov
Magnitude11.2
Comparison stars sourceHJ - Magnitudes in the Hipparcos photometric system
MethodM - Morris`s method
Coma diameter(')0.3
Tail's lengthNot set
Condensation8/
Positional angle of tailNot set
Bortl's scaleNot set
Aperture25.4 cm
Focal length (mm)1200
Type of toolL - Newtonian reflector
Magnification171.4
Field of view (°)0.48
SQM-L in zenith
Light pollution zoneGreen
Lm
Comment
Morris Format2023 Jul 21.93 UT: m1=11.2, Dia.=0.3', DC=8.5 ...25.4-cm L (171.4x) ...Alexsandr Morozov (Novozybkov, Russia)