Comet 21P/Giacobini-Zinner
Usercomethunter
User`s nameMaik Meyer
Observation's time (UT)1998-12-11 17:02:00
ToolNot set
Observation's place
Magnitude9.6
Comparison stars source
MethodM - Morris`s method
Coma diameter(')2.8
Tail's lengthNot set
Condensation3
Positional angle of tailNot set
Bortl's scaleNot set
Aperture25.4 cm
Focal length (mm)1270
Type of toolL - Newtonian reflector
Magnification65
Field of view (°)Not set
SQM-L in zenithNot set
Light pollution zone
LmNot set
Comment
Morris Format1998 Dec 11.71 UT: m1=9.6, Dia.=2.8', DC=3 ...25.4-cm (65x) ...Maik Meyer (, )