Comet C/2001 A2-A (LINEAR)
UserASem
User`s nameAndrey Semenyuta
Observation's time (UT)2001-07-13 18:30
Toolмшр-60
Observation's placePavlodar
Magnitude6.65
Comparison stars sourceHJ - Magnitudes in the Hipparcos photometric system
MethodS - Sidgwick`s method
Coma diameter(')8
Tail's length
Condensation3
Positional angle of tailNot set
Bortl's scaleNot set
Aperture6 cm
Focal length (mm)600
Type of toolR - Refractor
Magnification30
Field of view (°)1.5
SQM-L in zenith
Light pollution zone
Lm4.8
Comment
Morris Format2001 Jul 13.77 UT: m1=6.65, Dia.=8', DC=3, Tail: 7 deg ...6-cm R (30x) ...Andrey Semenyuta (Pavlodar, Kazakhstan)