Equipment and other photo info:
Picture taken on March 21st, 2012.
Location: Petrova Gora, Croatia
SkyWatcher ED120/900, FF/FR0,85x, Baader h-Alpha 7nm, TS OAG9mm, QHY8, QHY5 guiding camera
Exposure time: 15x1200sec for h-Alpha and 8x900sec for RGB
Mount: NEQ6 SynScan PRO

Processing software: DeepSkyStacker, PixInsight 1.0 LE, Photoshop CS4

Object info:
NGC 2403 (also Caldwell 7) is an intermediate spiral galaxy in the constellation Camelopardalis. NGC 2403 is an outlying member of the M81 Group, and is approximately 8 million light-years distant. It bears a striking similarity to M33, being about 50,000 light years in diameter and containing numerous star-forming H II regions.[The northern spiral arm connects it to nearby galaxy NGC 2404. NGC 2403 can be observed using 10×50 binoculars.

More information about this object at: http://en.wikipedia.org/wiki/NGC_2403