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

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.

Citation Download Citation

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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