Basic object information

Object name: NGC 6946
Object type: Galaxy
Magnitude: 9.0
Size: 11.5'x9.8'
Position angle: 57
Object classification: SBc
Description: vF,vL,vg,vsbM,rr
Notes: H IV 76;One of nearest spirals

Catalog information

RA (J2000.0): 20h 34m 54.0s
Dec (J2000.0): +60 09' 00"

Constellation: Cepheus

Observer: Iiro Sairanen
Obs. place: Härskiänsaari, Ruokolahti, Finland
Date/Time: 11/12.10.2004 22:50

Telescope: Newton 406/1830mm

Magn: 146x


Field: 21'

NE Lim.mag: 6.5

Background sky: 2

Seeing: 3

Height: 71
Visuality: III
Weather: +0C, good

This face-on galaxy has a low surface brightness and needs a good skies. In these conditions and equipment this was a pretty bright object. The core is highly elongated in N-S direction and quite large. Spiral structure is obvious. The massive eastern spiral arm is visible with direct vision, it ends just little before SN2004et. There is also another arm between the core and eastern arm. Its quite faint but clearly visible with averted vision. The western arm is much fainter than eastern. Several stars lies on the galaxy.