Basic object information
Name: NGC 4559
Type of object: Galaxy
Magnitude: 10.0
Surface brightness: 13.0 mag/sq arcmin
Size: 11.0'x4.9'
Position angle: 150
Object classification: SBc
Description: vB,vL,mE150,gbM,3 * f
Notes: H I 92;SN 1941a;multi arm spiral

Catalog position for epoch J2000.0
Right ascension: 12h 35m 57.3s
Declination: +27 57' 52"

Constellation: Coma Berenices

Observer: Iiro Sairanen
Obs. place: Ahola, Joutseno, Finland
Date/Time: 5/6.3.2002 22:00 UT

Telescope: 16" Dobson f 4.5

Magn: 146x

Filter: Lumicon deepsky

Field: 21'

NE Lim.mag: 6,2

Background sky: 2-3

Seeing: 3-4

Transparency: 3
Weather: windy, -1C

NGC 4559 on kooltaan 11,0'x4,9' ja kirkkaudeltaan 10mag. Galaksi näkyy ellipsinä, jolla hieman muita osia kirkkaampi ydin.


Back