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Browsing by Author "Bhattacharyya, J. C"

Browsing by Author "Bhattacharyya, J. C"

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  • Solar physics in India 
    Krishan, V; Bhattacharyya, J. C (National Solar Observatory, 1988-07)
  • 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 ...
  • Some further measurements of Uranian ring condensations 
    Vasundhara, R; Bhattacharyya, J. C; Rajamohan, R; Mahra, H. S (Kluwer Academic Publishers, 1983)
    The results of photometric observations of the occultation of BD-19 degree 4222 by Uranus on April 26, 1981 from two stations in India conform with the model proposed by Elliot et al. (1981).
  • Spectral characteristics of a solar flare from ionospheric data 
    Bhattacharyya, J. C; Balakrishnan, T. K (Pergamon Press Ltd, 1967)
    From the height variation of electron densities during a solar flare, ultra violet and X-ray contribution of ionization process has been estimated. The results thus obtained are in conformity with direct measurements of ...
  • Structures in Saturn's Magnetosphere 
    Bhattacharyya, J. C (Indian Academy of Sciences, 1995-12)
  • Studies of Solar Magnetic and Velocity Fields 
    Bhattacharyya, J. C (Indian Institute of Astrophysics, Kodaikanal Observatory, Kodaikanal, 1969)
  • Total electron concentration of the ionosphere over the magnetic equator 
    Rastogi, R. G; Iyer, K. N; Bhattacharyya, J. C (Indian Academy of Sciences, 1975-08)
  • Total Solar Eclipse of 1980 
    Bhattacharyya, J. C (Astronomical Society of India, 1978-03)
  • Total solar eclipse of February 16, 1980. 
    Bhattacharyya, J. C (Indian Academy of Sciences, 1980)
  • Total solar eclipse-October 1995 
    Bhattacharyya, J. C (Indian Academy of Sciences, 1995-09)
  • Variable stars in the old galactic cluster M67 
    Rajamohan, R; Bhattacharyya, J. C; Subramanian, V; Kuppuswamy, K (Astronomical Society of Indian, 1988-12)
    Schmidt plates of the old open galactic cluster M67 were obtained on twelve nights to find the most probable variables in the cluster. The Sabattier technique was used to derive the magnitudes of the cluster members. The ...
  • Velocity Oscillations in the Solar Atmosphere 
    Bhattacharyya, J. C (Solar Physics, Vol. 24, No. 2, pp. 274 - 287, 1972-06)
    From a series of long duration continuous Doppler records of selected spectral lines, characteristics of solar velocity oscillations have been studied. Statistical distribution of the durations of the bursts of oscillations ...

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