Sun

The Sun

By Marilyn Sedlacek

  • First Sun Spots

    First Sun Spots
    Galileo Galilei and Johannes Fabricius discover the first sun spots. Littmann, Mark. "Chronology of Discoveries about the Sun." Chronology of Discoveries about the Sun. Espenak, 22 Jan. 2008. Web. 12 Dec. 2013. http://www.mreclipse.com/Totality2/TotalityApH.html.

  • Dark Lines on the Spectrum

    Dark Lines on the Spectrum
    David Brewster proves that the dark lines on the Sun's spectrum are made from the absorption in the Earth's atomsphere. Littmann, Mark. "Chronology of Discoveries about the Sun." Chronology of Discoveries about the Sun. Espenak, 22 Jan. 2008. Web. 12 Dec. 2013. http://www.mreclipse.com/Totality2/TotalityApH.html.

  • Sun Spot Cycle

    Sun Spot Cycle
    After 17 years of study and research, Heinrich Schwade discovers the sun spot cycle. Littmann, Mark. "Chronology of Discoveries about the Sun." Chronology of Discoveries about the Sun. Espenak, 22 Jan. 2008. Web. 12 Dec. 2013. http://www.mreclipse.com/Totality2/TotalityApH.html.

  • Photograph the Sun

    Photograph the Sun
    Hippolyte Fizeau and Leon Foucault from France take the first clear photograph of the sun. Littmann, Mark. "Chronology of Discoveries about the Sun." Chronology of Discoveries about the Sun. Espenak, 22 Jan. 2008. Web. 12 Dec. 2013. http://www.mreclipse.com/Totality2/TotalityApH.html.

  • Temperature

    Temperature
    G. G. Cillié and Donald H. Menzel use eclipse spectra to show that the Sun's corona has a higher temperature than the photosphere during an eclipse in South Africa on October 1, 1940 Wiley, John. "The History of the Solar Eclipse." The History of the Solar Eclipse. N.p., 1997. Web. 09 Dec. 2013. http://www.timeanddate.com/eclipse/solar-eclipse-history.html.

  • Corona Flares

    Corona Flares
    Japan's Yohkoh spacecraft launched; verifies, over years of observations, that magnetic reconnection is responsible for coronal mass ejections and flares. Littmann, Mark. "Chronology of Discoveries about the Sun." Chronology of Discoveries about the Sun. Espenak, 22 Jan. 2008. Web. 12 Dec. 2013.

  • Recording of the Corona

    Recording of the Corona
    On December 22, 968, the first clear description of the corona was recorded during an eclipse. Littmann, Mark. "Chronology of Discoveries about the Sun." Chronology of Discoveries about the Sun. Espenak, 22 Jan. 2008. Web. 12 Dec. 2013. http://www.mreclipse.com/Totality2/TotalityApH.html.

  • The First Eclipse

    The First Eclipse
    The first ever eclipse was recorded. Wiley, John. "The History of the Solar Eclipse." The History of the Solar Eclipse. N.p., 1997. Web. 09 Dec. 2013. http://www.timeanddate.com/eclipse/solar-eclipse-history.html.