Astrometric instruments

Zone des éléments

Référentiel

Sujets

Code

Note(s) sur la portée et contenu

    Note(s) sur la source

      Note(s) d'affichage

        Termes hiérarchiques

        Astrometric instruments

        Terme générique Instrumentation

        Astrometric instruments

        Termes équivalents

        Astrometric instruments

          Termes associés

          Astrometric instruments

            17 Description archivistique résultats pour Astrometric instruments

            Results of observations of the fixed stars made with the Meridian Circle at the Government Observatory , Madras
            IND-IIA-F031-I01 · Pièce · 1865
            Fait partie de The fond contains Results of observations of the fixed stars made with the Meridian Circle at the Government Observatory , Madras

            Results of observations of the fixed stars made with the Meridian Circle at the Government Observatory , Madras, in the year 1862, 1863 and 1864 under the Direction of Norman Robert Pogson

             Sans titre
            Results of observations of the fixed stars made with the Meridian circle at the Government Observatory, Madras in the years 1877, 1878 and 1879, Vol. VI
            IND-IIA-F031-I06 · Pièce · 1877
            Fait partie de The fond contains Results of observations of the fixed stars made with the Meridian Circle at the Government Observatory , Madras

            Results of observations of the fixed stars made with the Meridian circle at the Government Observatory, Madras in the years 1877, 1878 and 1879.

             Sans titre
            Transit Circle - 6 inch
            IND-IIA-F045 · Fond · 1850

            The item is a 6 inch transit circle. The transit circle is an instrument used to determine the declination of stellar onjects. It consists of a circular scale kept perpendicular to the rotating axis of a telescope tube.

             Sans titre
            Photometer - designed by Dr. Hartmann - 1912
            IND-IIA-F042 · Fond · 1912

            This item was an instrument used for measuring the intensity of a light source. It uses a light-sensing device that is calibrated to express intensity in a standard unit. Some optical elements such as lens etc. are also employed to incerase the sensitivity of the instrument.

             Sans titre
            Letter of John Evershed to Gilbert T. Walker instructing to use the R.A. clamp cords
            IND-IIA-F001-I21 · Pièce · 15-04-1921
            Fait partie de Official and personal files of John Evershed with other Directors, famous astronomers and global institutes

            The letter was reply to D.O.No.2440 of the 8th instant, the R.A. clamp at Lahore is intended to be used with two cords and it was explained to Chowla. Further he mentioned about transit instrument and chronograph are extremly shoddy and not in accordance with specification.

             Sans titre
            Results of observations of the fixed stars made with the meridian circle at the Government observatory Madras in the years 1874, 1875 and 1876
            IND-IIA-F031-I05 · Pièce · 1874
            Fait partie de The fond contains Results of observations of the fixed stars made with the Meridian Circle at the Government Observatory , Madras

            Results of observations of the fixed stars made with the meridian circle at the Government observatory Madras in the years 1874, 1875 and 1876.

             Sans titre
            Letter from the Deputy Director of the Madras Observatory to the Director of Kodaikanal and Madras Observatories regarding Madras Meridian Circle observations
            IND-IIA-F224-I10 · Pièce · 22-03-1902
            Fait partie de Correspondence related to the transfers of various journals, periodicals, handbooks and publications to and from Kodaikanal Observatory from 1900 to 1923

            The letter is from the Deputy Director of the Madras Observatory to the Director of Kodaikanal and Madras Observatories regarding Madras meridian circle observations. It informs that the volumes of the mentioned observations have been forwarded to the Director of Laws Observatory, Missouri.

             Sans titre