Comet 41P/Tuttle-Giacobini-Kresak
Userantares48
User`s nameP. Jordanov
Observation's time (UT)2017-04-01 18:50
ToolBresser 150/750
Observation's placeDimitrovgrad-Brod
Magnitude7.9
Comparison stars sourceHJ - Magnitudes in the Hipparcos photometric system
MethodS - Sidgwick`s method
Coma diameter(')7.68
Tail's lengthNot set
Condensation2/
Positional angle of tailNot set
Bortl's scale5
Aperture15 cm
Focal length (mm)750
Type of toolL - Newtonian reflector
Magnification28.8
Field of view (°)1.74
SQM-L in zenith
Light pollution zone
Lm5
Comment
Morris Format2017 Apr 1.78 UT: m1=7.9, Dia.=7.68', DC=2.5 ...15-cm L (28.8x) ...P. Jordanov (Dimitrovgrad-Brod, Bulgaria)