This was a tough one! The individual files were horrible, not nearly enough exposure. The final result is all I could squeeze out of Photoshop. Celestron Fastar 8 at f/1.95, PixCel 237. This LRGB image was assembled from a 600 second (five by 120 seconds Track and Accumulate) monochromatic file, and composite RGB images (each five by 120 seconds Track and Accumulate). The RGB exposure ratio was 1:1:1. All images were unguided at -25 degrees Celsius, using the AP900. Image assembled in Adobe Photoshop. Slight Gaussian blur added to the RGB layer, and the L layer was modified with unsharp masking. RGB files registered in CCDOPS v4.0.
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