Live-Stacking the Deep Sky.

In recent years, complementary metal-oxide semiconductor (CMOS) detectors, which have similar and slightly newer technology, have supplanted CCDs as the detector of choice. Indeed, some of the newest cameras are so good that it's becoming increasingly common to capture colorful images of galaxies, nebulae, star clusters, and comets with lots and lots of extremely short exposures, rather than several longer ones. The image uses 162 one-minute exposures recorded with a 92-mm refractor and Player One Poseidon-M camera controlled with TheSky HD. However, this may not be a significant problem, particularly if your camera and telescope combination produce an image scale larger than your mount's periodic error (PE). [Extracted from the article]