{"id":49937,"date":"2025-04-28T12:50:07","date_gmt":"2025-04-28T10:50:07","guid":{"rendered":"https:\/\/meonline.hu\/?p=49937"},"modified":"2025-04-28T12:50:07","modified_gmt":"2025-04-28T10:50:07","slug":"origo-es-meridians","status":"publish","type":"post","link":"https:\/\/meonline.hu\/en\/utoirat\/origo-es-meridians\/","title":{"rendered":"Origo and Meridian"},"content":{"rendered":"

Architectural Additives of the Tycho Project<\/strong><\/p>\n

Text: Alexander Gyeres<\/strong><\/p>\n

Collecting materials for his Tycho Project, Alexander Gyenes has visited several European observatories from the Early Modern era. Some of the most remarkable solar observatories, in the form of functionalized meridian lines, were housed in cathedrals. The Tycho Project represents his attempt at creating a surface onto which cosmological themes dealing with space, the skies, heaven, and void can be projected. Gyenes calls this space the celestial interface.
\nTycho Brahe (1546\u20131601) in developing methods, instrumentation, experiment based theories for terrestrial and celestial observations, was one of the pioneers of modern science. His ways of data collection and reduction, collaboration and publishing \u2013 made his daily praxis inspirational for those who came after.
\nThe golden years of building meridianas started in the 15th century with the work of Toscanelli in Florence, and lasted well into the 18th, the most celebrated being Cassini\u2019s heliometer at the San Petronio church in Bologna, a major center of learning in Europe, installed in 1655. By analyzing his observations, he was able to resolve in a satisfying manner the two major errors affecting Tycho\u2019s instrumental data: the assumed values of the solar parallax, and the refraction arising from the Earth\u2019s atmosphere. He also generated supporting evidence for Kepler\u2019s 2nd law by measuring the decrease in the Sun\u2019s diameter between the winter and summer solstices.<\/p>\n

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