CometC/2015 V2 (Johnson)
Userantares48
User`s nameP. Jordanov
Observation's time (UT)2017-04-24 19:00
ToolBresser 150/750
Observation's placeDimitrovgrad-Brod
Magnitude8.3
Comparison stars sourceHJ - Magnitudes in the Hipparcos photometric system
MethodS - Sidgwick`s method
Coma diameter(')8.2
Tail's lengthNot set
Condensation5
Positional angle of tailNot set
Bortl's scale6
Aperture15 cm
Focal length (mm)750
Type of toolL - Newtonian reflector
Magnification28.8
Field of view (°)1.74
SQM-L in zenith
Light pollution zoneGreen
Lm5.8
Comment
Morris Format2017 Apr 24.79 UT: m1=8.3, Dia.=8.2', DC=5 ...15-cm L (28.8x) ...P. Jordanov (Dimitrovgrad-Brod, Bulgaria)