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          Astrophysics

            1069 Archival description results for Astrophysics

            13 results directly related Exclude narrower terms
            IND-IIA-F205-I05 · Item · 23-02-1902
            Part of Correspondance related to Magnetic Observatory during 1898-1923

            This letter is from R.E.V. Arbuthnot to the secretary to the Government of Madras, Public Works Department, regarding the erection of a building to house the photo spectroheliograph which was being procured from England for the use of the Kodaikanal Solar Physics Observatory.

            Arbuthnot, R. E. V.
            IND-IIA-F198-I01 · Item · 14-04-1906
            Part of Queries Sent to Various Observatories from 1906 to 1923

            This is a Letter from R. K. Rangachan to R. L. Jones regarding the lunar eclipse. It is a query asking if there was a lunar eclipse visible in India on May 7, 1715. It also says that A.D.Maestro Servel and Dikshit stated in their Hindu calendar that there was a total eclipse of the sun on April 22 previously.

            Ragnachan, R. K.

            The letter discusses on comparison on graphs that gives the difference between the shift of line at the various points, and the shift at the centre to be compared with his formula. At the backside of this letter S. M. Sulaiman's handwritten explained the formula.

            Evershed, John

            The letter was a appreciation for John Evershed discovery of spectral shift of light from the edge of the solar disc is really double of Einsteins's value. He mentioned about failure of Einstein's relativity. Further he provided 6 points on Newtonian principles, equation for the motion of a light, spectral shift of light.

            Evershed, John

            The letter was a reply to the letter of the 6th of December 1936 and the reprint sent by John Evershed. He enclosed the letter of A. S. Eddington and replying to it. He explained his point of view on A. S. Eddington objection on his formula for the spectral shift of light.

            Evershed, John
            IND-IIA-F200-I17 · Item · 16-06-1922
            Part of Correspondence regarding clocks of Kodaikanal Observatory

            This is a letter from S. R. U. Savoor Deputy Director Madras Observatory to the Director General of Observatories Simla informing that there is no connection in practice between humidity of air and rate of Riefler clock as indicated by graphs.

            Savoor, S. R. U.