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Loading contentA widely used mobile and desktop planetarium app that shows the sky in the observer's hand and can point a computerised telescope at any object with a tap. SkySafari combines a large object database with real-time sky simulation and telescope control for use at the eyepiece.
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.