M81 & M82

Object: M81 & M82
Optics: Takahashi TOA-150 f/7.3
Idas LPS filter
Camera: SBIG STL11Km
CCD temperature: -20°C
Exposure: 1X1 1X1 HA-540min(18X30m), R-300min(50X6m), G-(R+B)/2, B-300min(50X6m)
Mount: Takahashi EM-400
Image processing: Maxim DL, Photoshop
Quebec, Qc, Canada
April 19, 2009