NGC 7331

Object: NGC 7331
Optics: Planewave CDK 12.5" f/8.0
Idas LPS filter
Camera: SBIG ST-10XME
CCD temperature: -10°C
Exposure: 2X2 L-300min(30X10m), R-300min(30X10m), Gs(R+B)/2, B-230min(23X10m)
Mount: Takahashi EM-400
Image processing: PixInsight, CCDStack, Photoshop
Quebec, Qc, Canada
October 30, 2013

Object: NGC 7331
Optics: Planewave CDK 12.5" f/8.0
Idas LPS filter
Camera: SBIG STL11Km
CCD temperature: -15°C
Exposure: 1X1 L-540min(54X10m), -- Bin 2X2 R-130min(13X10m), Gs-(R+B)/2, B-160min(16X10m)
Mount: Takahashi EM-400
Image processing: Maxim DL, PhotoshopCS4
Quebec, Qc, Canada
October 1, 2010