- ... M 67
![[*]](/icons/foot_motif.gif)
- Based on observations made with the William Herschel Telescope, the Isaac Newton
Telescope and the Jacobus Kapteyn Telescope operated on the island
of La Palma by the Isaac Newton Group in the Spanish Observatorio del
Roque de los Muchachos of the Instituto de Astrofisica de
Canarias, and the Dutch Telescope operated at La Silla by the
European Southern Observatory.
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- ... IRAF
- IRAF is distributed by the National
Optical Astronomy Observatories, which are operated by the Association
of Universities for Research in Astronomy, Inc., under cooperative
agreement with the National Science Foundation.
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- ... models
- ftp://calvin.physast.uga.edu/pub/NextGen/Colors/
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