Comet46P/Wirtanen
UserMarco Goiato
User`s nameMarco Antonio Coelho Goiato
Observation's time (UT)2018-12-13 02:15:00
Tool4 x 50 B
Observation's placeAraçatuba
Magnitude4.0:
Comparison stars sourceYG - Yale Bright Star Catalogue
MethodS - Sidgwick`s method
Coma diameter(')70
Tail's lengthNot set
Condensation5
Positional angle of tailNot set
Bortl's scaleNot set
Aperture5 cm
Focal length (mm)Not set
Type of toolB - Binoculars
Magnification4
Field of view (°)Not set
SQM-L in zenith
Light pollution zoneYellow
Lm
CommentStar with m1: 5.76 inside the coma
Morris Format2018 Dec 13.09 UT: m1=4.0:, Dia.=70', DC=5 ...5-cm B (4x) ...Marco Antonio Coelho Goiato (Araçatuba, Brazil)