http://hdl.handle.net/2248/2008 Sat, 11 Apr 2026 00:41:41 GMT 2026-04-11T00:41:41Z http://hdl.handle.net/2248/2018 Title: Technical report on the DST project astronomical and atmospheric observations in Ladhak region with long term view of setting up a national high altitude astronomical observatory for infra-red and optical studies (April 1984 to October 1989) Authors: Bhatnagar, A; Gandhi, S.L Tue, 01 Jan 1991 00:00:00 GMT http://hdl.handle.net/2248/2018 1991-01-01T00:00:00Z http://hdl.handle.net/2248/2017 Title: Some further characteristics of observing conditions at Leh Authors: Singh, J; Bhattacharyya, J. C; Babu, G. S. D; Appakutty, M; Kuppuswamy, K; Moorthy, V; Devendran, P; Velu, C; Sivakumar, R Abstract: 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. Thu, 01 Mar 1990 00:00:00 GMT http://hdl.handle.net/2248/2017 1990-03-01T00:00:00Z http://hdl.handle.net/2248/2016 Title: Site survey for an infrared observatory Authors: Bhatnagar, A Tue, 01 Jan 1974 00:00:00 GMT http://hdl.handle.net/2248/2016 1974-01-01T00:00:00Z http://hdl.handle.net/2248/2015 Title: Proposed high altitude observing facility Authors: Bhattacharyya, J. C Description: Restricted Access Tue, 01 Sep 1987 00:00:00 GMT http://hdl.handle.net/2248/2015 1987-09-01T00:00:00Z