... NRAO

The National Radio Astronomy Observatory is a facility of the National Science Foundation operated under cooperative agreement by Associated Universities, Inc.

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... Facility

IRSF is operated by Nagoya University and SAAO (South African Astronomical Observatory) at Sutherland, South Africa.

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... IRAF

IRAF is distributed by the National Optical Astronomy Observatories, which is operated by the Association of Universities for Research in Astronomy, Inc. (AURA) under cooperative agreement with the National Science Foundation.

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... database

http://www.astro.wesleyan.edu/bill/research/ttauri.html

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