Comet17P/Holmes
UserMarco Goiato
User`s nameMarco Antonio Coelho Goiato
Observation's time (UT)2007-12-30 23:19:00
Tool7 x 50 B
Observation's placeAraçatuba
Magnitude4.1
Comparison stars sourceAU - ASAS-3 V magnitudes
MethodS - Sidgwick`s method
Coma diameter(')70
Tail's lengthNot set
Condensation0
Positional angle of tailNot set
Bortl's scaleNot set
Aperture50 cm
Focal length (mm)Not set
Type of toolB - Binoculars
Magnification7
Field of view (°)Not set
SQM-L in zenithNot set
Light pollution zone
LmNot set
Comment
Morris Format2007 Dec 30.97 UT: m1=4.1, Dia.=70', DC=0 ...50-cm B (7x) ...Marco Antonio Coelho Goiato (Araçatuba, Brazil)