Cataloging of the Digitized Poss-II: Initial Scientific Results

Creators: Djorgovski, S. G.; de Carvalho, R. R.; Gal, R. R.; Pahre, M. A.; Scaramella, R.; Longo, G.

Other:: McLean, Brian J.

Abstract

The Second Palomar Sky Survey (POSS-II) is now nearing completion. It will cover the entire northern sky with 894 fields (6.5° square) at 5° spacings, with no gaps in the coverage. Plates are taken in three bands: IIIa-J + GG395, λ_(eff) ∼ 480 nm; IIIa-F + RG610, λ_(eff) ∼ 650 nm; and IV-N + RG9, λ_(eff) ∼ 850 nm. Typical limiting magnitudes reached are B_J ∼ 22.5, R_F ∼ 20.8, and I_N ∼ 19.5, i.e., ∼ 1m −1.5m deeper than the POSS-I. The image quality is improved relative to the POSS-I, and is comparable to the southern photographic sky surveys. For more details, see Reid et al. (1987), and Reid & Djorgovski (1993).

Additional Information

© 1997 IAU. We are grateful to our many collaborators, including Nick Weir, Joe Roden, Julia Kennefick, Tereasa Brainerd, Usama Fayyad, Jeremy Darling, Vandana Desai, Emil Kartalov, Paul Stolorz, Alex Gray, Daniel Stern, and Isobel Hook; to Neill Reid, Jean Mueller, and others in the POSS-II survey team; to Barry Lasker, Brian McLean, and others in the digitization team at STScI; and to Massimo Capaccioli, Roberto Buonanno, and other CRONA-ies. This work was supported at Caltech by the NSF PYI award AST-9157412, grants from NASA, the Bressler Foundation, and Palomar Observatory. This paper is the CRONA Contribution No. 1.

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