The Darkness of the Chilean Night Sky

Details The Darkness of the Chilean Night Sky The Darkness of the Chilean Night Sky

Dec 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002aas...201.7607v&link_type=abstract

American Astronomical Society, 201st AAS Meeting, #76.07; Bulletin of the American Astronomical Society, Vol. 34, p.1226

Astronomy and Astrophysics

Astronomy

1

Scientific paper

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.

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