Note concernant les images marquées © Digitized Sky Survey :
The Digitized Sky Survey was produced
at the Space Telescope Science Institute
under U.S. Government grant NAG W-2166. The images of these surveys are
based on photographic data obtained using the Oschin Schmidt Telescope
on Palomar Mountain and the UK
Schmidt Telescope. The plates were processed into the present compressed
digital form with the permission of these institutions.