Comet C/1989 X1 (Austin)
Userwacekm
User`s nameWaclaw Moskal
Observation's time (UT)1990-05-06 23:02:00
ToolNot set
Observation's placeKrosno, Poland
Magnitude5.1
Comparison stars sourceAE - Planetary magnitudes from the American Ephemeris and Nautical Almanac
MethodB - Bobrovnikoff`s method
Coma diameter(')
Tail's lengthNot set
Condensation4
Positional angle of tailNot set
Bortl's scaleNot set
Aperture
Focal length (mm)Not set
Type of tool
MagnificationNot set
Field of view (°)Not set
SQM-L in zenith
Light pollution zone
Lm
Comment
Morris Format1990 May 6.96 UT: m1=5.1, DC=4 ...Waclaw Moskal (Krosno, Poland, Poland)