Comet 21P/Giacobini-Zinner
UserMarco Goiato
User`s nameMarco Antonio Coelho Goiato
Observation's time (UT)2018-10-06 06:00:00
ToolTelescópio
Observation's placeAraçatuba
Magnitude8.9
Comparison stars sourceTK - Tycho-2 Catalogue
MethodS - Sidgwick`s method
Coma diameter(')4.5
Tail's lengthNot set
Condensation4/
Positional angle of tailNot set
Bortl's scaleNot set
Aperture22 cm
Focal length (mm)1440
Type of toolL - Newtonian reflector
Magnification57.6
Field of view (°)0
SQM-L in zenith
Light pollution zoneYellow
Lm
Comment
Morris Format2018 Oct 6.25 UT: m1=8.9, Dia.=4.5', DC=4.5 ...22-cm L (57.6x) ...Marco Antonio Coelho Goiato (Araçatuba, Brazil)