Date: 3/19/2010
Target: M65, M66, NGC3628 - The Leo Trio
Telescope: Orion 8" f/4.9 w/Multi-Purpose Coma Corrector
Camera: Canon 40D (modified)
Filter: None
Exposures: 35x240s (2.3h) @ ISO1600
Framing: North is Left, 2x Drizzle and 33% Crop
Start Temp: 42F
End Temp: 35F
Location: Mocksville, NC
Seeing: 4/5
Transparency: 5/5
Guiding (RMS/Osc): 0.21/41
Dark Noise (StdDev): 291
Start Time: 10:00PM
End Time: 2:00AM
Captured with Nebulosity, stacked using DeepSkyStacker, processed in Photoshop.

Full frame Leo Trio here.

From Wikipedia:
Messier 65 (also known as NGC 3623) is an intermediate spiral galaxy about 22 million light-years away in the constellation Leo. It was discovered by Charles Messier in 1780. M65, M66, and NGC 3628 comprise the famous Leo Triplet, a small group of galaxies.