Comet C/1988 Y1 (Yanaka)
UserHAS02
User`s nameWerner Hasubick
Observation's time (UT)1989-01-04 04:33:00
ToolNot set
Observation's place
Magnitude9.0
Comparison stars source
MethodS - Sidgwick`s method
Coma diameter(')1.3
Tail's lengthNot set
Condensation4
Positional angle of tailNot set
Bortl's scaleNot set
Aperture8 cm
Focal length (mm)0
Type of toolB - Binoculars
Magnification20
Field of view (°)Not set
SQM-L in zenithNot set
Light pollution zone
LmNot set
Comment
Morris Format1989 Jan 4.19 UT: m1=9.0, Dia.=1.3', DC=4 ...8-cm (20x) ...Werner Hasubick (, )