Comet C/1989 A1 (Yanaka)
UserHAS02
User`s nameWerner Hasubick
Observation's time (UT)1989-01-10 03:36:00
ToolNot set
Observation's place
Magnitude10.5
Comparison stars source
MethodS - Sidgwick`s method
Coma diameter(')2.4
Tail's lengthNot set
Condensation1
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 Format1989 Jan 10.15 UT: m1=10.5, Dia.=2.4', DC=1 ...20.3-cm (51x) ...Werner Hasubick (, )