Region of M42 in H alpha and OIII

This is my first attempt at creating a simulated RGB image from H alpha and OIII. The dynamic range in the core of M42 was laboriously achieved by combining two versions each of Ha@1000s, Ha@500s, and OIII@500s. The combined 1000s + 500s H alpha image was used as a final luminance layer.

my back yard; October 6 - November 4 2011, 23x1000s (Ha), 16x500s (Ha), 25x500s (OIII). Parsec 8300M on TV85 at f/5.6; guided.

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