Astrometric instruments

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          Astrometric instruments

            10 Descrição arquivística resultados para Astrometric instruments

            Results of observations of the fixed stars made with the Meridian Circle at the Government Observatory , Madras
            IND-IIA-F031-I01 · Item · 1865
            Parte 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

             Sem título
            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 · Item · 1877
            Parte 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.

             Sem título
            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.

             Sem título
            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.

             Sem título
            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 · Item · 1874
            Parte 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.

             Sem título
            Results of observations of the fixed stars made with the Meridian Circle at the Government Observatory , Madras, in the years 1871, 1872 and 1873 under the Direction of Norman Robert Pogson
            IND-IIA-F031-I04 · Item · 1871
            Parte 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 1871, 1872 and 1873.

             Sem título
            Results of observations of the fixed stars made with the Meridian circle at the Government Observatory, Madras in the years 1865, 1866 and 1867
            IND-IIA-F031-I02 · Item · 1865
            Parte 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 1865, 1866 and 1867.

             Sem título
            Results of observations of the fixed stars made with the Meridian circle at the Government Observatory, Madras in the years 1880, 1881 and 1882, Vol. VII
            IND-IIA-F031-I07 · Item · 1880
            Parte 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 1880,1881 and 1882.

             Sem título