M101 - NGC5457

in Ursa Major

M101 NGC 5457

Optic
Officina Stellare RC360AS + Reducer f/6 (f=2160mm)
Mount
Losmandy HGM Titan
Camera
SBIG ST-10XE + CFW10 + AO8
Exposure time
3h 40min LRGB: L: 10x10min, RGB 2xbinned each 4x10min
Processing
PixInsight 1.7
Date / Time
25th May 2011
Location
Bucklige Welt / Niederoesterreich
Notes
chip temp. -20°C

Some interessting background galaxies compared to Hubble image

astrophotos © by manfred schwarz