Attempt to assess astronomical ``seeing'' using a model

Details Attempt to assess astronomical ``seeing'' using a model Attempt to assess astronomical ``seeing'' using a model

Sep 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996ap%26ss.239..237b&link_type=abstract

Astrophysics and Space Science, Volume 239, Issue 2, pp.237-245

Astronomy and Astrophysics

Astrophysics

2

Astronomical Seeing, Seeing Forecast, Modelling

Scientific paper

The degradation of astronomic images by optical inhomogeneities in the earth's atmosphere is generally called “seeing”. It represents the angular diameter of the stellar images as seen through a turbulent medium. Several techniques can be used to determine this parameter. The knowledge of the optical strength of atmospheric turbulence, namely, the integrated structure coefficient of the atmospheric refractive index Cn 2 allows to predict the atmospheric optical quality in terms of seeing. We tried in this study to assess an astronomical seeing using a model forecast using meteorological data collected in three stations in Latin America from 1958 to 1991. The efficiency of the model is tested by comparison with simultaneous seeing measurements, at Chiliean astronomical sites.

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