AAS 201st Meeting, January, 2003
Session 76. Astronomers and Their Tools
Poster, Wednesday, January 8, 2003, 9:20am-6:30pm, Exhibit Hall AB

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[76.07] The Darkness of the Chilean Night Sky

S. Vera, P. Candia, K. Krisciunas, R. Leiton, N. B. Suntzeff (CTIO)

We have determined the B-band and V-band sky brightness over Cerro Tololo during the years 1988 to 2001 using CCD images obtained with the CTIO 0.9-m and 1.5-m telescopes. CCD observations have the potential of being much more accurate than single channel photometry of the sky because one can remove faint objects in the image to provide a more robust modal value of the sky. In comparing the CTIO data with values obtained at Mauna Kea from 1985 to 1996 (Krisciunas 1990, 1997), we find that the sky was fainter at CTIO during the years of overlap. However, the more recent data shows we that the sky brightness at CTIO is higher than observed during the previous solar maximum.

If you would like more information about this abstract, please follow the link to http://www.ctio.noao.edu/REU/ctioreu_2002/Projects2002/svera/. This link was provided by the author. When you follow it, you will leave the Web site for this meeting; to return, you should use the Back comand on your browser.

The author(s) of this abstract have provided an email address for comments about the abstract: nsuntzeff@noao.edu

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© 2002. The American Astronomical Soceity.