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Loading contentA free, open-source autoguiding application — the name stands for 'Push Here Dummy' — that images a guide star and issues corrections to the mount to hold a target steady through long exposures. PHD2 is the de-facto standard guider, used on its own or driven by imaging suites like N.I.N.A. and Ekos.
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Mission data, planetary science, space telescopes, and public-domain imagery.
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