Comet 12P/Pons-Brooks
UserAlexsandr Morozov
User`s nameAlexsandr Morozov
Observation's time (UT)2023-08-18 20:55
Toolтелескоп SW 10 dob
Observation's placeNovozybkov
Magnitude12.9
Comparison stars sourceHJ - Magnitudes in the Hipparcos photometric system
MethodS - Sidgwick`s method
Coma diameter(')0.8
Tail's lengthNot set
Condensation1/
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 Aug 18.87 UT: m1=12.9, Dia.=0.8', DC=1.5 ...25.4-cm L (171.4x) ...Alexsandr Morozov (Novozybkov, Russia)