M66 (NGC 3627) is an intermediate spiral galaxy located around 50 million light years away in the constellation of Leo and is part of the well known Leo triplet.
M66 has asymmetric spiral arms and a core that appears to be off center. This is caused by interaction with M65 and NGC 3628.
Amateur astrophotographers have tended to image the entire triplet which is quite dramatic but tends to result in lower resolution of the galaxies.
While M66 is rather low from my Chile location, the image has considerable integration time with 13 hours of luminance and 5.5 hours per channel of RGB yielding a reasonably deep high resolution view of the galaxy.
Imaged in LRGB on my Planewave CDK 1000 at Observatorio El Sauce, Chile.
Image acquisition and processing: Mike Selby