Investigation of seeing conditions on Terskol Peak

Details Investigation of seeing conditions on Terskol Peak Investigation of seeing conditions on Terskol Peak

Apr 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003kfnts...4...55a&link_type=abstract

Kinematika i Fizika Nebesnykh Tel, Suppl, no. 4, p. 55-58

Physics

Scientific paper

Seeing conditions are a very important parameter of an observational site. Seeing conditions are determined by atmospheric turbulence and are characterized by the Fried parameter r_0. In this work results of a recent attempt to determine the Fried parameter on Terskol Peak are presented. For this purpose the method of measuring of differentional motion of images obtained through small apertures was used. The Hartmann mask was taken as a subapertures producer. A CCD-camera was placed slightly out of focus in order to separate the images produced by different subapertures. Every image was still well focused, as the focus depth for a small subaperture is larger than for the main objective.

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