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Browsing by Author "Devendran, P"

Browsing by Author "Devendran, P"

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  • On the performance of a dual-beam polarimeter at Kodaikanal tower telescope 
    Nagaraju, K; Sankarasubramanian, K; Rangarajan, K. E; Ramesh, K. B; Singh, J; Devendran, P; Hariharan (Astronomical Society of India, 2008-09)
    Calibration and characterization of a dual-beam polarimeter installed at Kodaikanal Tower Telescope (KTT) for spectropolarimetric observations are presented in this paper. It was found that a slit width of 48 μ is optimum ...
  • Some further characteristics of observing conditions at Leh 
    Singh, J; Bhattacharyya, J. C; Babu, G. S. D; Appakutty, M; Kuppuswamy, K; Moorthy, V; Devendran, P; Velu, C; Sivakumar, R (Astronomical Society of India, 1990-03)
    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 ...
  • Some further characteristics of observing conditions at Leh 
    Singh, J; Bhattacharyya, J. C; Babu, G. S. D; Appakutty, M; Kuppuswamy, K; Moorthy, V; Devendran, P; Velu, C; Sivakumar, R (Astronomical Society of India, 1990-03)
    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 ...

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