by S. G. Djorgovski, A.A. Mahabal, A.J. Drake, M.J. Graham, C. Donalek
Publisher: arXiv 2012
Number of pages: 62
Sky surveys represent a fundamental data basis for astronomy. We use them to map in a systematic way the universe and its constituents, and to discover new types of objects or phenomena. We review the subject, with an emphasis on the wide-field imaging surveys, placing them in a broader scientific and historical context.
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