Comet46P/Wirtanen
Userantares48
User`s nameP. Jordanov
Observation's time (UT)2018-12-12 19:40
ToolBresser 150/750
Observation's placeDimitrovgrad-Aleksandrovo
Magnitude
Comparison stars sourceHJ - Magnitudes in the Hipparcos photometric system
Method
Coma diameter(')27
Tail's lengthNot set
Condensation3
Positional angle of tailNot set
Bortl's scale5
Aperture15 cm
Focal length (mm)750
Type of toolL - Newtonian reflector
Magnification23.4
Field of view (°)2.22
SQM-L in zenith
Light pollution zoneGreen
Lm6.0
Comment
Morris Format2018 Dec 12.82 UT:, Dia.=27', DC=3 ...15-cm L (23.4x) ...P. Jordanov (Dimitrovgrad-Aleksandrovo , Bulgaria)