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Browsing by Author "Uddin, W"

Browsing by Author "Uddin, W"

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  • On the unusual surge of 1991 November 16 
    Bondal, K. R; Gaur, V. P; Joshi, A; Uddin, W; Pande, M. C (Astronomical Society of India, 1994)
    An unusually 'long' surge of 'short' duration occurred in the NW region of the sun's limb on 1991 November 16, around 04 15 UT. Time-lapse photographic observations employing a Halle H-alpha filter having a 0.5/0.7 A ...
  • Possibility of occurrence of solar proton flares in relation to other phenomena 
    Uddin, W; Pande, M. C; Verma, V. K (Indian Institute of Astrophysics, Bangalore, 1988)
    In the present investigation we have studied the relation between solar proton flares and associated optical, radio and x-ray events. It is found that optical flares are usually associated with large optical flares in ...
  • Proposed 60-cm multichannel Solar Vacuum Telescope of UPSO, Naini Tal 
    Verma, V. K; Uddin, W; Gaur, V. P (Astronomical Society of India, 1998)
  • Proposed visible emission line space solar coronagraph 
    Singh, J; Prasad, B. R; Venkatakrishnan, P; Sankarasubramanian, K; Banerjee, D; Bayanna, R; Mathew, S; Murthy, J; Subramaniam, P; Ramesh, R; Kathiravan, S; Nagabhushana, S; Mahesh, P. K; Manoharan, P. K; Uddin, W; Sriram, S; Amit Kumar; Srivastava, N; Koteswara Rao; Nagendra, C. L; Chakraborty, P; Sriram, K. V; Venkateswaran, R; Krishnamurthy, T; Sreekumar, P; Sarma, K. S; Murthy, R; Navalgund, K. H; Samudraiah, D. R. M; Narayan Babu, P; Patra, A (Indian Academy of Sciences, 2011-01-25)
    The outer atmosphere of the sun – called the corona – has been observed during total solar eclipse for short periods (typically < 6 min), from as early as the eighteenth century. In the recent past, space-based instruments ...
  • Seeing and microthermal measurements near Devasthal top 
    Stalin, C. S; Sagar, R; Pant, P; Mohan, V; Kumar, B; Joshi, Y. C; Yadav, R. K. S; Joshi, S; Chandra, R; Durgapal, A. K; Uddin, W (Astronomical Society of India, 2001)
    Results of the seeing measurements carried out near Devasthal top on 43 nights during March to April 1999 are presented. Open air seeing measurements were carried out with a differential image motion monitor (DIMM) using ...
  • Short Note - a Solar Flare Event in CAII K on 1989 March 9 
    Uddin, W; Joshi, A (Astronomical Society of Indian, 1989-12)
  • Site characterization for the UPSO-TIFR telescope 
    Sagar, R; Uddin, W; Pandey, A. K; Stalin, C. S; Mohan, V; Sanwal, B. B; Gupta, S. K; Yadav, R. K. S; Durgapal, A. K; Joshi, S; Kumar, B; Gupta, A. C; Joshi, Y; Srivastava, J. B; Chaubey, U. S; Singh, M; Pant, P; Gupta, K. G; Padalia, T. D (Astronomical Society of India, 2000)
    The Uttar Pradesh State Observatory, Naini Tal and Tata Institute of Fundamental Research, Mumbai plan to install jointly a 3 metre size optical telescope at Devasthal located east of Naini Tal about 50 km by road. The ...
  • Solar observational programs and facilities at UPSO, Naini Tal 
    Gaur, V. P; Verma, V. K; Uddin, W (Astronomical Socity of India, 1998)
    We present here the overview of the solar facilities at the U.P. State Observatory, Naini Tal, which have been developed over years for the observations of solar activity phenomena. The various backend instruments and the ...
  • Surge activities on November 26-28, 1990 
    Uddin, W; Verma, V. K (Astronomical Society of India, 2000)
    We report here a study of 8 solar surges observed in H? emission on the west solar limb (active region NOAA 6368) on 26, 27 and 28 November 1990. Three surges were observed on 26 November of durations 35, 86 and 40 min at ...
  • Total solar eclipse observations of 24 October 1995 from Meja Khas, Allahabad 
    Verma, V. K; Uddin, W; Gaur, V. P; Joshi, G. C; Bondal, K. R; Pant, P (Astronomical Society of India, 1996)
    Monochromatic coronal images during the total solar eclipse of 24 October 1995 were successfully obtained in 6374 Amstrong [Fe X]line. The experiment carried out a Meja Khas, Allahabad during the eclipse and the preliminary ...

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