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Proceedings Paper

The feasibility of replacing the U.S. Naval Observatory's 61-inch astrometric reflector with a 3.5 m telescope
Author(s): Michael DiVittorio; Gordon Pentland; Kevin Harris
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Paper Abstract

The USNO 61" (1.55 m) astrometric reflector was state-of-the-art when it entered service in 1964. However, with a relatively small aperture, it now has limited research capability because it can not observe faint objects. The current facility, including dome and pier, offers significant resources upon which to build a larger telescope. Preliminary estimates indicate that a 3.5 m telescope could be retrofitted into the dome at a cost of ~$10-15 million; about half the cost of building on a new site. USNO has contracted with an engineering firm to perform a feasibility study of such a telescope upgrade, the results of which are summarized.

Paper Details

Date Published: 26 June 2006
PDF: 5 pages
Proc. SPIE 6267, Ground-based and Airborne Telescopes, 62673I (26 June 2006); doi: 10.1117/12.673064
Show Author Affiliations
Michael DiVittorio, U.S. Naval Observatory (United States)
Gordon Pentland, EOS Technologies, Inc. (United States)
Kevin Harris, EOS Technologies, Inc. (United States)

Published in SPIE Proceedings Vol. 6267:
Ground-based and Airborne Telescopes
Larry M. Stepp, Editor(s)

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