Synoptic seeing measurements at the University of Hawaii 2.2 M telescope

Details Synoptic seeing measurements at the University of Hawaii 2.2 M telescope Synoptic seeing measurements at the University of Hawaii 2.2 M telescope

Jan 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986spie..628..156h&link_type=abstract

IN: Advanced technology optical telescopes III; Proceedings of the Meeting, Tucson, AZ, Mar. 3-6, 1986 (A87-35201 15-89). Bellin

Physics

Optics

2

Atmospheric Optics, Synoptic Measurement, Telescopes, Cassegrain Optics, Diurnal Variations, Temperature Gradients, Wind Velocity

Scientific paper

The average seeing at the University of Hawaii 2.2 m telescope from August 10, 1985 to January 9, 1986 was 0.95 + or - 0.02 arcsec full width at half-maximum at a wavelength of 0.70 microns. The dome makes substantial contributions to this average because the seeing 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 microns), wind direction, or time (over the interval covered to date). The data reported in this paper are the baseline against which the results of a long-term program of dome thermal balance improvements will be assessed.

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