A few years after the invention of the spectroheliograph by G. E. Hale and H. Deslandres, Prof. F. M. da Costa Lobo from the University of Coimbra decided to construct a spectroheliograph, among the first ones in the world, at the beginning of the twentieth century (1907). Prof. da Costa Lobo got in touch with solar astronomers in Meudon. With their help and in order to study the structure of the solar chromosphere, he built in Coimbra a spectroheliograph identical to that in Meudon. In turn, French astronomers asked to complete their own collection of observations with that of Coimbra. Thus a cooperative program between both institutions started, the French partners being H. Deslandres and L. d'Azambuja. Since then, the processing of observations and drawings of synoptic maps of solar activity have maiply been based on Meudon and Coimbra observational material. This collaboration is certainly among one of the longest in astronomical studies, and marked the beginning of European scientific collaborations, at least between Portugal and France.
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机译：在葛兰莱和H. deslandres的发明内容术后几年，从辛博大学的FM Da Costa Lobo教授决定在二十世纪初（第一个）建造一个SpectrohelioGraph在世界上第一个世界的光谱 - 1907）。 Da Costa Lobo教授与Meudon的太阳天文学家联系。凭借他们的帮助，为了研究太阳能铬圈的结构，他内置于Coimbra的光谱仪与Meudon中相同。反过来，法国天文学家要求用科英布拉完成自己的观察集。因此，两个机构之间的合作计划开始，法国合作伙伴是H. deslandres和L. d'azambuja。从那时起，太阳能概要地图的观察和绘图的处理已经基于Meudon和Coimbra观测材料。这种合作肯定是天文学研究中最长的一个，并标志着欧洲科学合作的开始，至少在葡萄牙和法国之间。
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