Gamma Cas Star and Sharpless 2-185 Nebula (IC59 and IC63) The OIII filter didn't pick up any nebulosity. These are the result of different processing attempts with only SII and Ha data present. The OIII data was mapped to the blue channel, but the result was a neon green nebula. So I got creative and arrived at these two results.Why no OIII data? Because the nebula isn't actually an emission nebula. The ionization from the star is reflecting on the nebula and thus revealing it.

Telescope Focal Length/Ratio Mount Camera Filters Exposure Binning Focuser Location Date Processing

AP160 + AP field flattener 1232mm   F/7.7 Takahashi NJP Temma 2 Apogee Alta U16M Astrodon 5nm Ha/SII/OIII 240 minutes - SII:Ha:OIII [100:70:70] 1x1 Robo-Focus Eldorado, TX; Crowell, TX; Frisco, TX Oct/Nov, 2009 - captured with Maxim DL v4 - aligned and Maxim DL v4 - combined and adjusted in PhotoShop CS3

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