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  2. Johannes Kepler thought he sketched Mercury orbiting across ...

    www.aol.com/johannes-kepler-1607-sketches...

    German astronomer Johannes Kepler made sketches of sunspots in 1607 from his observations of the sun’s surface — and centuries later, the pioneering drawings are helping scientists solve a ...

  3. File:Kepler Drawing of SN 1604.png - Wikipedia

    en.wikipedia.org/wiki/File:Kepler_Drawing_of_SN...

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  4. Camera obscura - Wikipedia

    en.wikipedia.org/wiki/Camera_obscura

    In 1607, Kepler studied the Sun in his camera obscura and noticed a sunspot, but he thought it was Mercury transiting the Sun. [62] In his 1611 book Dioptrice, Kepler described how the projected image of the camera obscura can be improved and reverted with a lens.

  5. Sunspot drawing - Wikipedia

    en.wikipedia.org/wiki/Sunspot_drawing

    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]

  6. Solar observation - Wikipedia

    en.wikipedia.org/wiki/Solar_observation

    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 ...

  7. The team at The Old Farmer’s Almanac says they can pull off correct projections thanks to age-old meteorological methods centered around solar science and sunspots along with newer fields like ...

  8. Letters on Sunspots - Wikipedia

    en.wikipedia.org/wiki/Letters_on_Sunspots

    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]

  9. Still have eclipse glasses? See the sunspot 15 times wider ...

    www.aol.com/weather/still-eclipse-glasses-see...

    A sunspot this large is easy enough to see from Earth; all that is needed is a solar filter or pair of eclipse glasses to protect your eyes from the sun's dangerous rays. Sunspot AR3664 compared ...