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Loading contentIdentifying the same object across different catalogues and wavelengths — matching a source in an infrared survey to its optical and X-ray counterparts — so that all that is known about an object can be brought together despite different names and positions.
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.