M42 (Orion Nebula) & M43 (De Mairan’s Nebula): False Color Composite from Ha + OIII only light channels | Philip Henson
False color composite of M42+M43 from Ha + OIII only light channels. Still working on blending but I think this is a good starting point for an image made from exposures from two different cameras and two different mornings shooting runs plus variances in the time of image acquisition and sky seeing quality. Also the two images were shot at different camera sensor viewing angles and I had to rotate the OIII overlay and align plus crop since starfield backgrounds were quite different hence the odd shaped starfierld and image border. The OIII channel image is the same I posted from yesterday so that you can look and compare as to how much the frame was transformed….