Comet 55P/1997 E1/Tempel-Tuttle
Userslava03
User`s nameVyacheslav Ivanov
Observation's time (UT)1998-02-01 16:20:00
Tool"Мицар"
Observation's placeСаратов
Magnitude8.5
Comparison stars sourceTK - Tycho-2 Catalogue
MethodS - Sidgwick`s method
Coma diameter(')7
Tail's lengthNot set
Condensation2
Positional angle of tailNot set
Bortl's scaleNot set
Aperture11 cm
Focal length (mm)805.85
Type of toolL - Newtonian reflector
Magnification32.2
Field of view (°)1.55
SQM-L in zenithNot set
Light pollution zoneOrange
LmNot set
Comment
Morris Format1998 Feb 1.68 UT: m1=8.5, Dia.=7', DC=2 ...11-cm L (32.2x) ...Vyacheslav Ivanov (Саратов, Russia)