I used 714 finding charts, mainly of the Second Digital Sky Survey (DSS2) and
I thank all institutions which are engaged in this project:
530 charts are based on southern plates which belong to the Second Epoch Survey of the southern sky made by the Anglo-Australian Observatory (AAO) with the UK Schmidt Telescope. These plates have been digitized and compressed by the ST ScI. The digitized images are copyright (c) 1993-8 by the Anglo-Australian Observatory Board, and are distributed herein by agreement. All Rights Reserved.
161 charts are extracted from the compressed files of the Palomar Observatory - Space Telescope Science Institute Digital Sky Survey of the northern sky, based on scans of the Second Palomar Sky Survey and are copyright (c) 1993-1995 by the California Institute of Technology and are distributed herein by agreement. All Rights Reserved. Produced under Contract No. NAS5-2555 with the National Aeronautics' and Space Administration.
Some charts are based on
(a) photographic data obtained using The UK Schmidt Telescope. The UK Schmidt Telescope was operated by the Royal Observatory Edinburgh, with funding from the UK Science and Engineering Research Council, until 1988 June. Original plate material is copyright (c) the Royal Observatory Edinburgh and the Anglo-Australian Observatory. The plates were processed into the present compressed digital form with their permission. The Digitized Sky Survey was produced at the Space Telescope Science Institute under US Government grant NAG W-2166;
(b) photographic data of the National Geographic Society - Palomar Observatory Sky Survey (NGS-POSS) obtained using the Oschin Telescope of Palomar Mountain. The NGS-POSS was funded by a grant from the National Geographic Society to the California Institute of Technology. The plates were processed into the present compressed digital form with their permission.
I obtained the data as fits-files from the Online Digitized Sky Surveys (DSS1 & 2) server at the ESO/ST-ECF Archive, using the webpage of ESO.
I thankfully acknowledge the database SIMBAD operated at CDS (Strasbourgh, France).