Comet C/1989 Y1 (Skorichenko-George)
UserHAS02
User`s nameWerner Hasubick
Observation's time (UT)1990-01-13 18:00:00
ToolNot set
Observation's place
Magnitude8.9
Comparison stars source
MethodS - Sidgwick`s method
Coma diameter(')0.7
Tail's lengthNot set
Condensation
Positional angle of tailNot set
Bortl's scaleNot set
Aperture20.3 cm
Focal length (mm)0
Type of toolT - Schmidt-Cassegrain reflector
Magnification51
Field of view (°)Not set
SQM-L in zenithNot set
Light pollution zone
LmNot set
Comment
Morris Format1990 Jan 13.75 UT: m1=8.9, Dia.=0.7' ...20.3-cm (51x) ...Werner Hasubick (, )