Date: 2013-02-14
Sum of 43 shots; each one exposed for 20 seconds at 1600 ISO.
Instrumentation: Canon EOS 350D on direct focus of newton Orion 150/750 on EQ5 mount
To show you how difficult is to reveal this nebula from a light polluted area I list here this sequence of images that show the main processing phases.
Single shot
Arithmetic sum of 43 shots
Generated gradient
Gradient removed
'black' command (Iris) + filters