  This paper analyzes the performance of observatories based on the so-called
h-index (Hirsch 2005), a new, easy-to-use parameter that quantifies scientists'
research impact and relevance. Compared to other bibliometric criteria, like
total number of publications or citations, the h-index is less biased. Using
NASA's Astrophysics Data System (ADS), we investigate the performance of
selected observatories, taking into account their specific number of years of
operation.
