Observation's detail view

Comet C/1980 E1 (Bowell)
Userterryjlovejoy
User`s name
Observation's time (UT)1982-06-13 12:57:00
Tool20cm Newtonian
Observation's placeShailer Park
Comparison stars sourceAE - Planetary magnitudes from the American Ephemeris and Nautical Almanac
MethodS - Sidgwick`s method
Magnitude11.8
Coma diameter(')0.8
Tail's lengthNot set
Condensation4
Positional angle of tailNot set
Bortl's scaleNot set
Aperture20
Focal length (mm)1200
Type of toolL - Newtonian reflector
Magnification48
Field of view (°)1.04
SQM-L in zenithNot set
Light pollution zoneOrange
LmNot set
CommentTransparency excellent with cold westerly wind. Nearly 18 month wait to see another comet since Tuttle and Stephan-Oterma.
Morris Format1982 Jun 13.54 UT: m1=11.8, Dia.=0.8', DC=4 ...20-cm L (48x) ...Terry Lovejoy (Shailer Park, Australia)