Discovered by William Herschel on December 26 1785, this nebula has reflection -the blue bits- and emission parts. The first trial of the Canon OAG on the f3.9. No shortage of guide stars here, but oh so difficult to process...

ngc2264: nebula cone and open cluster xmas tree ngc2264 in monoceros
700d + pn208    38x300s @ ISO800