M100

This is a bit of an experiment in low ISO urban imaging. It was taken under magnitude 3.5 skies with a waxing gibbous Moon and light pollution. 

Object Object RA 12:22:55 Dec +15:49:19
Exposure 60 minutes (12 X 5 minutes)
ISO 200
Camera Canon 350D DSLR
Optics 8" f/4 Schmidt Newtonian Telescope
Location Bedford, Nova Scotia
Processing Calibration, stacking, background noise reduction and initial star size reduction done with Images Plus . Background correction and further noise reduction applied in Paint Shop Pro . After the noise reduction the low spacial frequency noise was reduced using a layered technique. The star colour was enhanced slightly and the image was sharpened after being reduced in size for this web page.