By Rogelio Bernal Andreo

This deep widefield is a 3x4 mosaic taken over 6 October'09  nights at three different sites (Deep Sky Ranch, DARC Observatory and Henry Coe State Park, all in Northern California).

Each frame has between 4 and 10 subexposures, all 10 minutes each for the luminance, and 4x5 minutes bin 2x2 for each RGB channel, for the color. All were taken with a Takahashi FSQ106EDX with the 0.75x reducer and a STL 11k CCD. The areas of M45 and the California nebula also include complete images taken in September'09.