Comet C/1989 W1 (Aarseth-Brewington)
UserLIN01
User`s name
Observation's time (UT)1989-11-25 18:00:00
ToolNot set
Observation's place
Magnitude7.9
Comparison stars source
MethodB - Bobrovnikoff`s method
Coma diameter(')2.5
Tail's lengthNot set
Condensation4
Positional angle of tailNot set
Bortl's scaleNot set
Aperture14 cm
Focal length (mm)0
Type of toolS - Schmidt-Newtonian telescope
Magnification25
Field of view (°)Not set
SQM-L in zenithNot set
Light pollution zone
LmNot set
Comment
Morris Format1989 Nov 25.75 UT: m1=7.9, Dia.=2.5', DC=4 ...14-cm (25x) ... (, )