While Galileo largely abandoned systematic sunspot observations following the publication of his "Three Letters on Solar Spots," Scheiner devoted himself fully to sunspot observations. He improved on the projection method of Galileo and Castelli by designing a specialized telescopic solar projection instrument, which he called heliotropii ...

Christoph Scheiner's meticulous observations of sunspots, detailed in his book "Rosa Ursina," provided a crucial contribution to the understanding of the sun's behavior and structure. His detailed drawings and meticulous documentation helped establish a foundation for future solar research, pushing the boundaries of astronomical knowledge.

2025年1月19日 · Christoph Scheiner was one of the most outstanding astronomers in the history of the sunspot observations. His book, Rosa Ursina, is the reference work regarding the study of the earliest sunspot records.

2022年3月15日 · Christoph Scheiner was one of the most outstanding astronomers in the history of sunspot observations. His book, Rosa Ursina, is the reference work regarding the study of the earliest sunspot records.

2023年7月18日 · Christoph Scheiner, a German Jesuit astronomer, died July 18, 1650, just shy of his 77th birthday. Scheiner was one of four co-discoverers of sunspots, which he first observed with his telescope in the fall of 1611.

Here Scheiner agreed with Galileo that sunspots are on the Sun's surface or in its atmosphere, that they are often generated and perish there, and that the Sun is therefore not perfect. Scheiner further advocated a fluid heavens (against the Aristotelian solid spheres), and he pioneered new ways of representing the motions of spots across the ...

Scheiner made the most sustained and systematic observations of them, published in his massive treatise, Rosa Ursina, in 1640. Scheiner tracked sunspots as they moved across the face of the sun and showed from this data that the sun was rotating …

2017年9月2日 · Christoph Scheiner, a Jesuit mathematician, argued that sunspots were planets or moons crossing in front of the Sun. Galileo, on the other hand, countered that the spots were on or near the surface of the Sun itself, and he supported his position with a series of meticulous observations and mathematical demonstrations that eventually convinced ...

2022年3月1日 · Christoph Scheiner was one of the most outstanding astronomers in the history of sunspot observations. His book, Rosa Ursina , is the reference work regarding the study of the earliest...

Digital images of observations printed in the books Rosa Ursina sive solis and Prodromus pro sole mobili by Christoph Scheiner, as well as the drawings from Scheiner’s letters to Marcus Welser, are analysed to obtain information on the positions and sizes of sunspots that appeared before the Maunder minimum. Methods.