CometC/2018 Y1 (Iwamoto)
UserKoalin
User`s nameDarius Gasiūnas
Observation's time (UT)2019-02-21 17:53
ToolSky-Watcher 12 Inch Dobsonian Telescope
Observation's placeДеревня Dindos, Ignalinos район, Литва
Magnitude8.5
Comparison stars sourceTK - Tycho-2 Catalogue
MethodM - Morris`s method
Coma diameter(')6.5
Tail's lengthNot set
Condensation5
Positional angle of tailNot set
Bortl's scaleNot set
Aperture30.5 cm
Focal length (mm)1500
Type of toolL - Newtonian reflector
Magnification123.3
Field of view (°)0.58
SQM-L in zenith
Light pollution zone
Lm
CommentMin mag star 14,7m Кома не симерична.
Morris Format2019 Feb 21.75 UT: m1=8.5, Dia.=6.5', DC=5 ...30.5-cm L (123.3x) ...Darius Gasiūnas (Деревня Dindos, Ignalinos район, Литва, )