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

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

    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.

  3. 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 ]

  4. Celestial mechanics - Wikipedia

    en.wikipedia.org/wiki/Celestial_mechanics

    Dynamics of the celestial spheres concerns pre-Newtonian explanations of the causes of the motions of the stars and planets. Dynamical time scale Ephemeris is a compilation of positions of naturally occurring astronomical objects as well as artificial satellites in the sky at a given time or times.

  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. Kepler orrery - Wikipedia

    en.wikipedia.org/wiki/Kepler_orrery

    The orrery was created by Fabrycky, then a postdoc at the University of California, Santa Cruz, largely due to an accident.When he created an animation of a six-planet system Kepler-11 for his work on a home computer in 2011, his son and daughter were found playing with the program.

  7. Study finds that stars and planets grow together - AOL

    www.aol.com/study-finds-stars-planets-grow...

    To answer the question, researchers studied the atmospheres of white dwarf stars – the ancient, faint remnants of stars like our Sun – to investigate the building blocks of planet formation.

  8. Astronomy - Wikipedia

    en.wikipedia.org/wiki/Astronomy

    Kepler was the first to devise a system that correctly described the details of the motion of the planets around the Sun. However, Kepler did not succeed in formulating a theory behind the laws he wrote down. [40] It was Isaac Newton, with his invention of celestial dynamics and his law of gravitation, who finally explained the motions of the ...

  9. Jupiter, ascending: See our solar system’s biggest planet at ...

    www.aol.com/jupiter-ascending-see-solar-system...

    Weather permitting, Jupiter will not only be brighter than most other stars and planets in the evening sky, but will also be visible all night long. Jupiter, ascending: See our solar system’s ...