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 a Star forming region NGC 2404 (source Wikipedia).
LRGB composition, total integration 6.3hrs, February 2015. William Optocs FLT132 at F5.6 - Avalon Linear Fast Reverse - Atik 460EX - Baader LRGB filters.