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Now showing items 1-20 of 870

1.5M Aluminizing Plant of the Indian Institute of Astrophysics

Saxena, A. K; Jayarajan, A. P; Kumar, K (Indian Institute of Astrophysics, Bangalore, 1980)

The design and features of 1.5m vacuum coating plant an in house facility at the Kavalur Observatory for periodic aluminizing of astronomical optics are described. A typical performance data is given.
1840 - 1880 Chintamanny Ragoonatha Chary

Indian Institute of Astrophysics (Indian Institute of Astrophysics, 2006)
The 1995 Total Solar Eclipse: An Overview

Singh, J (Indian Institute of Astrophysics, 1997)

As we know, we owe the discovery of solar corona to the observation of total solar eclipse. Inspite of all that has been learned, coronal studies still remain the most important aspect of scientific investigation during ...
3He Rich Solar Flares

Ramadurai, S (Indian Institute of Astrophysics, Bangalore, 1986)

The various observational features of the 3He rich solar flares like their characteristics and association with other phenomena are discussed. It is shown that 3He rich flares split into two distinct groups, if one plots ...
The Absolute Magnitudes of Wolf-Rayet Stars HD 151932 and HD 152270

Shylaja, B. S; Bappu, M. K. V (Indian Institute of Astrophysics, Bangalore, 1983)

The absolute visual magnitudes of two Wolf-Rayet stars HD 151932 (WN 7) and HD 152270 (WC 7+08) have been determined from their energy distributions and monochromatic magnitudes least contaminated by emission lines taking ...
The absorption markings in Hα spectroheliograms

Royds, T (Royal Astronomical Society, 1911-06)
Abstract of results of measurements of Saturn's Satellites made at the Madras Observatory in 1856-7, with the Lerebours Equatoreal. Ap. 6.3 in., foc. 88.6 in., power usually employed 174

Jacob, W. S (Royal Astronomical Society, 1857-11)
An account of the comet as seen on board the ship Childe Harold on her voyage from Bombay to London

Jacob, W. S (Royal Astronomical Society, 1843-06)
Account of the performance of Mr. Fletcher's new equatoreal

Jacob, W. S (Royal Astronomical Society, 1860-04)
Active prominences and associated terrestrial effects

Narayana, J. V (Government Observatory, Madras, 1963-10)
Alcor about 2,300 years ago

Chidambara Ayyar, P. R (British Astronomical Association, 1922-06)
An Analog System for Fast Light Curve Registration

Bhattacharyya, J. C; Sundareswaran. A (Indian Institute of Astrophysics, Bangalore, 1977)

An electronic system for recording fast light curves is described. The system employs a two track magnetic tape recorder for intermediate storage of photometer and time signals and reproduces these on cathode ray oscilloscope ...
An analysis of Babinet compensator fringes using Jones calculus

Pandya, T. P; Saxena, A. K (Indian Institute of Astrophysics, 1978)

Following Jones Calculus, a comprehensive theory of the Babinet Compensator has been presented. The performance of the system governed by the compensator-Polaroid unit, has been evaluated in terms of fringe visibility. ...
An analysis of the cepheid variable RT Aurigae

Bappu, M. K. V; Raghavan, Nirupama (Royal Astronomical Society, 1969)
Anil Kumar Das (1902 - 1961) Elected Fellow 1943

Bhattacharyya, J. C (Indian National Science Academy, 1994-12-01)
Annual report of the Director Kodaikanal and Madras Observatories for 1913

Evershed, J; Royds, T (Kodaikanal and Madras Observatories, 1914-02)
Annual report of the Director Kodaikanal and Madras Observatories for 1914

Evershed, J (Kodaikanal and Madras Observatories, 1915-02)
Annual report of the Director Kodaikanal and Madras Observatories for 1915

Evershed, J (Kodaikanal and Madras Observatories, 1916-01)
Annual report of the Director Kodaikanal and Madras Observatories for 1916

Evershed, J (Kodaikanal and Madras Observatories, 1917-02)
Annual report of the Director Kodaikanal and Madras Observatories for 1917

Evershed, J (Kodaikanal and Madras Observatories, 1918-02)

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