Surprised By Low Noise

[bobro]

Even with a full Moon, it seemed a shame to 'waste' clear skies, so I decided to see what my (uncooled) Hypercam 183M would produce with a (rather old) Astronomik Ha filter, not expecting very much in the way of results at a reported temp of 14 degrees C with the uncooled camera.

150PL scope (f#8), 18 subs @ 6min, 11 dark, 10 flat, x3 binned, not dithered.

The resulting image (no noise reduction other than kappa-sigma stacking) surprised me as I was expecting it to be pretty awful due to noise. I suppose x3 binning helped, but it must be down to the low noise of the IMX183 sensor, although a stretched single sub looks horrible with hot pixels.