NGC2403
NGC 2403 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.
Photo Details

Telescope: Celestron C8N (1000mm)

Camera: Sbig ST-2000XM, Filter wheel, Baader 1.25" LRGB filtes

Mount: NJP

Guiding: Self-guided

Exposure: LRGB L 18x10min, RGB 7x10min

When: 2011,2013 and October 2014

Other information: very good transparency, good seeing