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Loading contentA small, portable motorised mount that slowly turns a camera to follow the stars, so that long exposures capture faint detail without the stars trailing into streaks. It has made wide-field astrophotography of the Milky Way accessible to anyone with a camera.
Facts on this topic will be cited from these primary and reference sources.
Mission data, planetary science, space telescopes, and public-domain imagery.
Most NASA-produced imagery is in the public domain; individual items are checked for usage terms before publication.