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Proceedings Paper

A thousand and one nights of seeing on Mt. Wilson
Author(s): David F. Buscher
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Paper Abstract

The Mark III optical interferometer has been in routine operation on Mt. Wilson, near Los Angeles CA, since 1988. Because it employs active fringe-tracking, seeing measurements are a natural byproduct of any astronomical observation. An automated seeing analysis program has allowed us to extract measurements of the coherence time, t(omicron ), and the high-frequency spectral index of the power spectrum of fringe motion for all clear nights in the observing seasons 1989-1991. This provides a unique database of the seeing; very few other measurements of the temporal properties of astronomical seeing exist, and none with such a representative sampling of nights. We examine various statistical properties of the seeing and infer quantities of interest to the design of future interferometers.

Paper Details

Date Published: 9 June 1994
PDF: 12 pages
Proc. SPIE 2200, Amplitude and Intensity Spatial Interferometry II, (9 June 1994); doi: 10.1117/12.177276
Show Author Affiliations
David F. Buscher, Universities Space Research Association and U.S. Naval Observatory (United Kingdom)

Published in SPIE Proceedings Vol. 2200:
Amplitude and Intensity Spatial Interferometry II
James B. Breckinridge, Editor(s)

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