Synoptic Seeing Measurements At The University Of Hawaii 2.2m Telescope

J. P. Henry; G. Cecil; B. Barnes; F. Cheigh; L. A. Thompson

doi:10.1117/12.963523

20 August 1986 Synoptic Seeing Measurements At The University Of Hawaii 2.2m Telescope

J. P. Henry, G. Cecil, B. Barnes, F. Cheigh, L. A. Thompson

Author Affiliations +

Proceedings Volume 0628, Advanced Technology Optical Telescopes III; (1986) https://doi.org/10.1117/12.963523
Event: 1986 Astronomy Conferences, 1986, Tucson, United States

Abstract

The average seeing at the University of Hawaii 2.2 m telescope from 10 August 1985 to 9 January 1986 was 0.95 ± 0.02 arcsec full width at half-maximum at a wavelength of 0.70 pm. We believe that the dome makes substantial contributions to this average because the see-ing degrades with increasing temperature difference between a point near the primary mirror and the outside air. There is no significant dependence on wavelength (over the range 0.63-0.82 μm), wind direction, or time (over the interval covered to date). The data reported in this paper are the baseline against which we will assess the results of a long-term program of dome thermal balance improvements.

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J. P. Henry, G. Cecil, B. Barnes, F. Cheigh, and L. A. Thompson "Synoptic Seeing Measurements At The University Of Hawaii 2.2m Telescope", Proc. SPIE 0628, Advanced Technology Optical Telescopes III, (20 August 1986); https://doi.org/10.1117/12.963523

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