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Astroclimatology of ESO Sites

ESO WIDE REVIEW
M. Sarazin, April 2000, 0/10

 
VLT SITE: STILL OUTSTANDING?
Paranal is a site which provides a photometric sky 78% of the available nighttime. Outside seeing can remain in the range 0.3-0.5 arcsec several hours in a row. However such conditions nowadays appear less often than 5-10 years ago, why?....a study of climate cycles attempts to bring together some pieces of the puzzle
ESO Observatories Ambient Conditions Database (http://archive.eso.org/asm/ambient-server)