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  2. Analemma - Wikipedia

    en.wikipedia.org/wiki/Analemma

    The "width" of the figure is due to the equation of time, and its angular extent is the difference between the greatest positive and negative deviations of local solar time from local mean time when this time-difference is related to angle at the rate of 15° per hour, i.e., 360° in 24 h. This width of the analemma is approximately 7.7°, so ...

  3. Allais effect - Wikipedia

    en.wikipedia.org/wiki/Allais_Effect

    During the solar eclipse of July 22, 1990, no anomalous period increase of a torsion pendulum was detected independently by a team in Finland [20] and another team in Belomorsk, USSR. [21] The total solar eclipse of August 11, 1999 had been a good opportunity to solve a 45-year mystery, thanks to an international collaboration.

  4. Shadow bands - Wikipedia

    en.wikipedia.org/wiki/Shadow_bands

    Shadow bands observed during the total solar eclipse of 21 August 2017. The video shows a white sheet (36 x 66 inches, 0.91 x 1.7 meters) laid out on the ground under the sunlight. The shadow bands start faintly, grow dramatically intense as the remaining crescent of sunlight shrinks, and suddenly vanish at the moment of darkness of the total ...

  5. What is an umbra? A penumbra? Here's some terms to know ... - AOL

    www.aol.com/umbra-penumbra-heres-terms-know...

    A total solar eclipse happens when the moon passes between the sun and Earth, while fully blocking the face of the sun. Lunar eclipses occur at the full moon phase. When Earth is positioned ...

  6. Here's how the solar eclipse looked like from space as it ...

    www.aol.com/heres-solar-eclipse-looked-space...

    Millions of Texans saw yesterday’s solar eclipse in totality from their front yards, rooftops, state parks, or smartphones.. Skies began to darken during the April 8th eclipse around 1 p.m. CDT ...

  7. ‘Eclipse chasers’ explain what it feels like to experience a ...

    www.aol.com/news/eclipse-chasers-explain-feels...

    A hybrid solar eclipse switches between annular and total. A partial solar eclipse happens when the moon only covers a portion of the sun. At least two solar eclipses happen each year, per NASA .

  8. Solar eclipse - Wikipedia

    en.wikipedia.org/wiki/Solar_eclipse

    A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby obscuring the view of the Sun from a small part of Earth, totally or partially.Such an alignment occurs approximately every six months, during the eclipse season in its new moon phase, when the Moon's orbital plane is closest to the plane of Earth's orbit. [1]

  9. Solar eclipse myths explained: What to know about eclipse ...

    www.aol.com/solar-eclipse-myths-explained-know...

    Solar eclipse: What time is the eclipse in OH, KY and IN? A list of start times for the tri-state area. MYTH: Total solar eclipses produce harmful radiation that can cause blindness.