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. The northern spiral arm connects it
to nearby galaxy NGC 2404. NGC 2403 can be observed using 10×50
binoculars.