Here you can find an image in H-alpha taken with the FSQ/STL11K combo
- CCD : STL11000M ABG 1x1 binning
- Exposure time : 255 min H-alpha (15 min individual exposures)
- Date and Time : 08. Sept. 2004
- Instrument : 40cm @ f/3.3
- Focal length : 1320 mm
- FWHM :
- Filters : Astronomik H-alpha filter
- Image processing : sigma clip combine, darks, flat
- Problems/comments : Further processing in Imageplus (DDP) and Photoshop.
I had to crop the left part due to a vignetting of the filter.
Image was done at my backyard, Mol, Belgium