Posted by HrAstro
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
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