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Scientists analyzed famed astronomer Johannes Kepler’s 1607 sketches of sunspots to solve a mystery about the sun’s solar cycle that has persisted for centuries.
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Separately, centuries after German astronomer Johannes Kepler made sketches of sunspots in 1607 from his observations of the sun’s surface, the pioneering drawings helped scientists piece ...
The first sunspot drawing, John of Worcester around 1128. Sunspot drawing or sunspot sketching is the act of drawing sunspots. Sunspots are darker spots on the Sun's photosphere. Their prediction is very important for radio communication because they are strongly associated with solar activity, which can seriously damage radio equipment. [1]
Johann was the first to realize that sunspots revealed solar rotation, but he died on 19 March 1616, aged 26 and his father a year later. Several scientists such as Johannes Kepler, Simon Marius, and Michael Maestlin were aware of the Fabricius' early sunspot work, and indeed Kepler repeatedly referred to it his writings. However, like that of ...
Hisako Koyama (1916–1997) [1] was a Japanese solar observer, whose multidecade collection of detailed sunspot sketches played role in reconstructing a continuous sunspot record dating back to 1610. [ 2 ] [ 3 ] Koyama worked as a staff member of the National Museum of Nature and Science, Tokyo for more than 40 years and completed more than ...
Johannes Kepler observed a sunspot in 1607 but, like some earlier observers, believed he was watching the transit of Mercury. [11] The sunspot activity of December 1610 was the first to be observed using the newly invented telescope, by Thomas Harriot, who sketched what he saw but did not publish it. [12]
Kepler introduced the idea that the physical laws determining the motion of planets around the Sun were the same governing the motion of moons around planets. He justified this claim in Book IV using the telescope observations of the moons of Jupiter made by Simon Marius in his 1614 book Mundus Iovialis .