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

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    The super blood moon lunar eclipse occurred late in the night of Sunday, Jan. 20, 2019, and carried over into early morning Monday. The shadow from Earth, called the penumbra, begins to fall upon ...

  3. Umbra, penumbra and antumbra - Wikipedia

    en.wikipedia.org/wiki/Umbra,_penumbra_and_antumbra

    Poompa, penumbra and antumbra of Earth and images that could be seen at some points in these areas (Note: the relative size and distance of the bodies shown are not to scale.)“… The Earth’s shadow has two distinct parts,… the UMBRA is the part of the shadow where all direct sunlight is blocked by the Earth; the PENUMBRA of the shadow is ...

  4. How to See Rarely-Captured Shadow Bands During the Solar ...

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    Also called shadow snakes, shadow bands are famously difficult to capture on camera or video, though not impossible. ( This video taken in Nashville during the 2017 total solar eclipse is one of ...

  5. Eclipse - Wikipedia

    en.wikipedia.org/wiki/Eclipse

    The term eclipse is most often used to describe either a solar eclipse, when the Moon's shadow crosses the Earth's surface, or a lunar eclipse, when the Moon moves into the Earth's shadow. However, it can also refer to such events beyond the Earth–Moon system: for example, a planet moving into the shadow cast by one of its moons, a moon ...

  6. Shadow bands - Wikipedia

    en.wikipedia.org/wiki/Shadow_bands

    Shadow bands are thin, wavy lines of alternating light and dark that can be seen moving and undulating in parallel on plain-coloured surfaces immediately before and after a total solar eclipse. [1] They are caused by the refraction by Earth's atmospheric turbulence [2] of the solar crescent as it thins to a narrow slit, which increasingly ...

  7. Here's how fast the eclipse's shadow could move on Monday ...

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    Did you know that the shadow of a solar eclipse travels between 1100 and 5000 mph depending on where it is on Earth? The closer to the poles the shadow is, the faster it travels! #INwx # ...

  8. Eclipse cycle - Wikipedia

    en.wikipedia.org/wiki/Eclipse_cycle

    Eclipses may occur when Earth and the Moon are aligned with the Sun, and the shadow of one body projected by the Sun falls on the other. So at new moon, when the Moon is in conjunction with the Sun, the Moon may pass in front of the Sun as viewed from a narrow region on the surface of Earth and cause a solar eclipse.

  9. Vivid satellite footage shows solar eclipse hitting Earth ...

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    NOAA's GOES-East weather satellite captured the annular "ring of fire" solar eclipse from space, as the moon cast a large shadow over Earth's surface.