NGC 3628 is one of the 3 large spiral galaxies located in the constellation of Leo. The peculiar shape of this "hamburger galaxy" was caused by gravitational interactions with other members of the galaxy group. The image was acquired with a 12.5" PlaneWave telescope and a Quantum-Scientific QSI640-ws camera working at f/5.2 from a dark-sky site near Anza, CA. The final LRGB integration represents about 9.5 hours of time.
-- Bruce Waddington