Basic object information

Object name: M 109
Object type: Galaxy
Magnitude: 9.8
Size: 7.5'x4.4'
Position angle: 68
Object classification: SBbc
Description: cB,vL,pmE,sbM,BN
Notes: H IV 61;theta struc barred sp;Gamma UMa 40' NW

Catalog information

RA (J2000.0): 11h 57m 36.0s
Dec (J2000.0): +53 22' 00"

Constellation: Ursa Major


Observer: Iiro Sairanen
Obs. place: Härskiänsaari, Ruokolahti, Finland
Date/Time: 23/24.4.2006 1:50

Telescope: Newton 457/2280 mm

Magn: 183x

Filter:

Field: 16'

NE Lim.mag: 6.4

Background sky: 2

Seeing: 2

Height: 66
Visuality: I
Weather: -2C

Very difficult details are in view with averted vision. The central bar goes thru the core which is pretty bright and round. Some spiral structure are faintly visible on the NW and SE.