Basic object information

Object name: NGC 4509
Object type: Galaxy
Magnitude: 13.4
Size: 48.0"x30.0"
Position angle: 155
Object classification: Sab pec
Description: vF,S,R,lbM

Catalog information

RA (J2000.0): 12h 33m 06.0s
Dec (J2000.0): +32 06' 00"

Constellation: Canes Venatici


Observer: Iiro Sairanen
Obs. place: Härskiänsaari, Ruokolahti, Finland
Date/Time: 23/24.3.2007 3:45

Telescope: Newton 457/2280 mm

Magn: 352x

Filter:

Field: 12'

NE Lim.mag: 6.5

Background sky: 2

Seeing: 2

Visuality: II

Height: 50


Weather: -1C, northern lights, 31% Moon is setting in NW

Slightly elongated in NW-SE, even brightness.