CometC/2015 ER61 (PANSTARRS)
UserCastor 98
User`s nameMarek Biely
Observation's time (UT)2017-04-02 02:30:00
Tool20x80 binoculars
Observation's placeBrno (244 m a.s.l.)
Magnitude[7.0
Comparison stars sourceHJ - Magnitudes in the Hipparcos photometric system
Method
Coma diameter(')4.0
Tail's lengthNot set
Condensation
Positional angle of tailNot set
Bortl's scaleNot set
Aperture8 cm
Focal length (mm)Not set
Type of toolB - Binoculars
Magnification20
Field of view (°)2.5
SQM-L in zenith
Light pollution zone
Lm
CommentImpossible to see in these altitudes. Fainter than 7.0 mag.
Morris Format2017 Apr 2.1 UT: m1=[7.0, Dia.=4.0' ...8-cm B (20x) ...Marek Biely (Brno (244 m a.s.l.), Czech Republic)