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NED

Nov 4, 2016 |
NASA/IPEC Extragalactic Database.It is built around a master list of extragalactic objects for which cross-identifications of names have been established, accurate positions and redshifts entered to

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Planetary Data System

Nov 4, 2016 |
PDS archives and distributes scientific data from NASA planetary missions, astronomical observations, and laboratory measurements. The PDS is sponsored by NASA's Office of Space Science.

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