... 2155-304

Based on observations made at the Laboratório Nacional de Astrofísica (LNA-CNPq, Brazil).

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... Brazil)

Operated by the Laboratório Nacional de Astrofísica (LNA/CNPq).

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... package

IRAF is distributed by the National Optical Observatories, which is operated by the Association of Universities for research in Astronomy, Inc., under co-operative agreement with the National Science Foundation.

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... Jablonski

http://www.lna.br/instrum/Camiv/scripts.html

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... DSS

http://archive.stsci.edu/dss/index.html

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