International Celestial Reference System
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celestial reference system using reference celestial sources observed at radio wavelengths
Connections
very-long-baseline interferometry
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epoch
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Hipparcos
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barycenter
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International Earth Rotation and Reference Systems Service
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Catalogues of Fundamental Stars
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minute and second of arc
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International Terrestrial Reference System
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astronomy
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Solar System
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gravity
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International Standard Book Number
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general relativity
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Wayback Machine
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astronomical object
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digital object identifier
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International Standard Serial Number
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International Astronomical Union
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quasar
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rotation
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