9.6 The Solar Union Congress, 1910
193
Fig. 9.16 The participants of the congress of the International Union for the Cooperation of Solar Research on Mount Wilson in the summer of 1910. The building is shielded
from the Sun with a large tent. Courtesy the Observatories of the Carnegie Institution
for Science Collection, Huntington Library, San Marino, California [87]
Sweden, Karl Friedrich Küstner from the Bonner Sternwarte. They too were
astronomers who mainly studied stars. But also Marie Paul Auguste Charles
Fabry (1867–1945) from Marseille was there, together with Jean-Baptiste
Alfred Perot (1863–1925), together the inventors of an instrument to accurately measure wavelengths of spectral lines. And from Europe also the
renowned researchers of the Sun Henri-Alexandre Deslandres (1853–1948)
of l’Observatoire de Paris en Annibale Riccò (1844–1919) of Catania Osservatorio in southern Italy.
Figure 9.16 shows all participants and Fig. 9.17 some key persons. A report
of the congress and an identification of all participants can be found in an
article by Herbert Couper Wilson (1858–1940) [88], who is known as editor
of two American astronomical journals. The meeting was held on top of Mount
Wilson in a wooden building on the Observatory, known as the ‘museum’. To
keep the temperature acceptable, a large canvas tent cloth was stretched over
it (see Fig. 9.16).
The almost eighty participants had first (on Monday August 29) visited the
offices and the workshop of the Observatory in Pasadena. Many of them had
attended a meeting of the Astronomical and Astrophysical Society of America in
Harvard before this meeting (from 17 to 19 August) and had come to Pasadena
from Chicago in two special train wagons, 3 visiting Lowell Observatory in
3 The report says that forty persons were transported with two ‘cars’. I assume they were train wagons.
193
Fig. 9.16 The participants of the congress of the International Union for the Cooperation of Solar Research on Mount Wilson in the summer of 1910. The building is shielded
from the Sun with a large tent. Courtesy the Observatories of the Carnegie Institution
for Science Collection, Huntington Library, San Marino, California [87]
Sweden, Karl Friedrich Küstner from the Bonner Sternwarte. They too were
astronomers who mainly studied stars. But also Marie Paul Auguste Charles
Fabry (1867–1945) from Marseille was there, together with Jean-Baptiste
Alfred Perot (1863–1925), together the inventors of an instrument to accurately measure wavelengths of spectral lines. And from Europe also the
renowned researchers of the Sun Henri-Alexandre Deslandres (1853–1948)
of l’Observatoire de Paris en Annibale Riccò (1844–1919) of Catania Osservatorio in southern Italy.
Figure 9.16 shows all participants and Fig. 9.17 some key persons. A report
of the congress and an identification of all participants can be found in an
article by Herbert Couper Wilson (1858–1940) [88], who is known as editor
of two American astronomical journals. The meeting was held on top of Mount
Wilson in a wooden building on the Observatory, known as the ‘museum’. To
keep the temperature acceptable, a large canvas tent cloth was stretched over
it (see Fig. 9.16).
The almost eighty participants had first (on Monday August 29) visited the
offices and the workshop of the Observatory in Pasadena. Many of them had
attended a meeting of the Astronomical and Astrophysical Society of America in
Harvard before this meeting (from 17 to 19 August) and had come to Pasadena
from Chicago in two special train wagons, 3 visiting Lowell Observatory in
3 The report says that forty persons were transported with two ‘cars’. I assume they were train wagons.