Basic object information

Object name: NGC 4172
Object type: Galaxy
Magnitude: 13.3
Size: 1.3'x1.1'
Position angle: 6
Object classification: S pec
Description: F,S,lE,gbM

Catalog information

RA (J2000.0): 12h 12m 12.0s
Dec (J2000.0): +56 11' 00"

Constellation: Ursa Major


Observer: Iiro Sairanen
Obs. place: Härskiänsaari, Ruokolahti, Finland
Date/Time: 21/22.2.2006 21:45

Telescope: Newton 457/2280 mm

Magn: 309x

Filter:

Field: 10'

NE Lim.mag: 6.1

Background sky: 4

Seeing: 3

Height: 59
Visuality: III
Weather: -7C, foggy

A moderate N-S oriented galaxy, clearly brighter elliptical core which is surrounded by fainter halo.