Comet 71P/Clark
UserMarco Goiato
User`s nameMarco Antonio Coelho Goiato
Observation's time (UT)2017-05-06 07:00
ToolTelescópio
Observation's placeAraçatuba
Magnitude12.0
Comparison stars sourceAE - Planetary magnitudes from the American Ephemeris and Nautical Almanac
MethodS - Sidgwick`s method
Coma diameter(')1.5
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
Magnification160
Field of view (°)0
SQM-L in zenith
Light pollution zoneYellow
Lm
Comment
Morris Format2017 May 6.29 UT: m1=12.0, Dia.=1.5', DC=4 ...22-cm L (160x) ...Marco Antonio Coelho Goiato (Araçatuba, Brazil)