Archival Collections: Recent submissions

  • Widened lines in sunspot spectra 
    Smith, C. M (Director Kodaikanal Observatory, 1905-11-30)
  • D3 as a dark line in the solar spectrum 
    Smith, C. M (Director Kodaikanal Observatory, 1905-08-05)
  • List of Prominences observed between 1903 September 1 and 1904 December 31 
    Smith, C. M (Director Kodaikanal Observatory, 1905-06-19)
  • Widened lines in sunspot spectra 
    Smith, C. M (Director Kodaikanal Observatory, 1904-11)
  • Modernisation of the Astrophysical Observatory Kodaikanal 
    Das, A. K (India Meteorological Department, 1960)
  • The Solar Physics Observatory, Kodaikanal 
    Das, A. K (Kodaikanal Observatory, 1956)
  • Observations during the total solar eclipse of October 24, 1995. 
    Kulijanishvili, V (Indian Institute of Astrophysics, 1997)
    Expedition of Abastumani Astrophysical Observatory jointly with Brazilian colleagues carried out two experiments at Nim Ka Thana. The first experiment was obtaining color picture of solar corona by means of 3 meter expedition ...
  • Spectroscopic studies of the solar corona during total solar eclipse of October 24, 1995 
    Ananda Rao, B. G; Ashok, N. M; Chandrasekhar, T; Desai, J. N; Nanda Kumar, M. S (Indian Institute of Astrophysics, 1997)
    We have obtained Fabry-Perot Interferograms of the solar corona during the 1995 total solar eclipse, in two emission lines, Fe X line at 6374Å and Fe XIV line at s303 Å. We have also obtained a Fabry-perot-gram of the ...
  • Intensity fluctuation of shadow bands during total solar eclipse of October 24, 1995 
    Shelke, R. N; Ingole, V. T (Indian Institute of Astrophysics, 1997)
    Intensity fluctuations of shadow bands during total solar eclipse of October 24, 1995 were recorded on magnetic tape using cross - shaped array of sixteen photo detectors at Nim Ka Thana. The plane of the array was placed ...
  • The Chromosphere 
    Bappu, M. K. V (International Astronomical Union, 1976)
  • Size of the Ca+ Coarse Network in the Solar Chromosphere at Sunspot Minimum 
    Bappu, M. K. V; Sivaraman, K. R (1966)
    Auto-correlation measures of the coarse Ca+ network made on selected spectroheliograms obtained during the solar minimum period of 1964 and 1965 are described. The full width at half maximum of the normalised A.C. curve ...
  • Madras M. S. Records 
    Goldingham, John (1794)
    This is a handwritten document which has both letters received by and written from the Madras Observatory. The interesting part of this record is that letters received by the Observatory have been copied fully or partly ...
  • Stellar chromospheres 
    Bappu, M. K. V (Indian Science Congress Association, 1977)
  • Madras M. S. Observations 
    Goldingham, John (1795)
    This is a handwritten record of observations made at Madras observatory during the period 1795-1800. It records the correspondent eclipses of the first and second satellites of Jupiter made by J. Goldingham at Madras ...
  • Ionospheric Indication of Short-time Solar Activity Variations 
    Bhattacharyya, J. C; Sunder, R. S (PID [Publications and Information Directorate], 1970)
    A series of Lyot filtergrams have been photometrically analysed and the variations in the plage intensity determined on a number of days. From simultaneous ionosonde records, correlation has been sought between the electron ...
  • Intensity Fluctuations in the H-alpha line caused by Chromospheric mottling 
    Bappu, M. K. V (IETE, 1964)
    Spectra of the H-alpha line obtained with high dispersion and high spatial resolution are used to study some of the characteristics of chromospheric mottling on the solar disk. The fluctuations in intensity, indicated by ...
  • Observing conditions for optical astronomy at Leh 
    Singh, J; Bhattacharyya, J. C; Babu, G. S. D; Ashoka, B. N; Appakutty, M; Rangarajan, K. E; Kutty, K. N; Moorthy, V; Selvakumar, G; Michael, P; Muniyandi, A; Gabriel, F (Astronomical Society of India, 1989-09)
    The sky and atmospheric conditions at Leh have been monitored since 1984 with a view to determining its suitability as a site for a high-altitude observatory. During May-November, 1987, relative humidity and other parameters ...
  • 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 ...
  • Project Kalki - A sky survey with the Schmidt telescope. 2 
    Rajamohan, R; Shankar, P. N; Bhattacharyya, J. C; Kuppuswamy, K; Paranjpye, A (Astronomical Society of Indian, 1988-03)
    The region of the sky photographed with the 45cm Schmidt telescope during 1987 March-May and the position of the asteroids detected on these plates are reported in this paper. Out of the 29 asteroids observed four have ...
  • Extinction measurements at Leh 
    Singh, J; Bhattacharyya, J. C; Raveendran, A. V; Mohin, S; Ashoka, B. N (Astronomical Society of India, 1988-03)
    Observations were started at Leh in 1984 with a view to finding the possibility of setting up an astronomical observatory for infrared observations. Results of extinction measurements in UBV bands obtained on 12 nights ...

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