Comet 21P/Giacobini-Zinner
Usercomethunter
User`s nameMaik Meyer
Observation's time (UT)1998-08-18 21:07:00
ToolNot set
Observation's place
Magnitude12.1
Comparison stars source
MethodS - Sidgwick`s method
Coma diameter(')1.7
Tail's lengthNot set
Condensation1
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 Aug 18.88 UT: m1=12.1, Dia.=1.7', DC=1 ...25.4-cm (65x) ...Maik Meyer (, )