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  1. Observatorio Union. /  -26.18425, 28.074227777778. El Observatorio Union (en inglés: Union Observatory) es un antiguo observatorio astronómico situado en Johannesburgo, Sudáfrica, que mantuvo su actividad desde su fundación en 1903 hasta 1971. Figura en la Lista de Códigos de Observatorios del Minor Planet Center con el código 078. 1 .

  2. Union Observatory also known as Johannesburg Observatory ( 078) is a defunct astronomical observatory in Johannesburg, South Africa that was operated between 1903 and 1971. It is located on Observatory Ridge, the city's highest point at 1,808 metres altitude in the suburb Observatory. [1] [2]

    • Johannesburg Observatory
    • 078
    • 1,808 metres (5,932 ft)
  3. University of Tartu Old Observatory active until 1964 (formerly Dorpat Observatory until 1919; not to be confused with modern Tartu Observatory, see L75) Tartu: Tartu 076: Johannesburg-Hartbeespoort Observatory (Union Observatory Annex), Hartbeespoort: North West: Johannesburg-Hartbeespoort 077: Yale-Columbia Southern Station (1925–1951) Src ...

  4. He acquired the observatory's first telescope, a 9-inch Grubb refractor, in 1909, and was appointed first Union Astronomer in 1912 at the establishment of the Union Observatory. The prime telescope from 1925 onwards was a 26.5-inch refractor, ideal for Innes' continued study of faint visual binary stars.

  5. Union Observatory also known as Johannesburg Observatory is a defunct astronomical observatory in Johannesburg, South Africa that was operated between 1903 and 1971. It is located on Observatory Ridge, the city's highest point at 1,808 metres altitude in the suburb Observatory.

  6. www .eui .eu. The European University Institute ( EUI) is an international postgraduate and post-doctoral research-intensive university and an intergovernmental organisation with juridical personality, established by its founding member states to contribute to cultural and scientific development in the social sciences, in a European perspective.

  7. Biblioteca del USNO (c.1980) El Observatorio Naval de los Estados Unidos (en inglés United States Naval Observatory o USNO) es una de las agencias científicas más antiguas de los Estados Unidos. Se encuentra en el cuadrante noroeste de Washington D. C. y es uno de los pocos observatorios localizado en una zona urbana.