Thursday, March 3, 2016
Crab--full frame
Like the Horsehead Nebula posted the other day, this pic gives a good idea of the FOV of the f/3.9 Newtonian astrograph. The image shows a wide swath of sky with no visible vignetting. The pearly glow at the edges is likely a combination of amp glow and glow from a local lighting source. This image is 9, 30-second exposures, stacked in Nebulosity with final histogram adjustments in Photoshop.
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