15IMPROVING YOUR ASTROPHOTOGRAPHY WITH PLANET STACKING
If you’ve ever looked through a telescope at Jupiter, Mars, or Saturn, you were probably a little disappointed. The planets appeared small and featureless. You wanted to zoom in and crank up the magnification, but it didn’t work. Anything bigger than about 200x magnification tends to be blurry.
The problem is air turbulence, or what astronomers call seeing. Even on a clear night, the air is constantly in motion, with thermal updrafts and downdrafts that can easily blur the pinpoints of light that represent celestial objects. But with the commercialization of the charge-coupled device (CCD) ...
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