Some further characteristics of observing conditions at Leh

Details Some further characteristics of observing conditions at Leh Some further characteristics of observing conditions at Leh

Mar 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990basi...18....7s&link_type=abstract

Astronomical Society of India, Bulletin (ISSN 0304-9523), vol. 18, Mar.-June 1990, p. 7-15. Research sponsored by the Department

Astronomy and Astrophysics

Astronomy

5

Atmospheric Attenuation, Interstellar Extinction, Moisture Content, Seeing (Astronomy), Sky Brightness, Astronomical Photometry, Astronomical Spectroscopy, Sky Surveys (Astronomy)

Scientific paper

The sky conditions were monitored and duration of photometric and spectroscopic hours determined on 198 nights during the period September 1984 to October 1986. Observations were continued from May till November 1987 and again from June to October 1988, when additionally the temperature and relative humidity values were systematically recorded. Several standard stars were monitored on several nights to determine the extinction coefficients in UBV bands; in addition, sky brightness was measured on eight nights in the months of September and October 1988. The values of sky brightness appear to be marginally higher than at La Palma. The average values of extinction coefficients, determined on 27 nights during 1988 show a general agreement with the earlier values.

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