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  2. Eclipses in mythology and culture - Wikipedia

    en.wikipedia.org/wiki/Eclipses_in_mythology_and...

    French Jesuits observing an eclipse with King Narai and his court in April 1688, shortly before the Siamese revolution. The periodicity of lunar eclipses been deduced by Neo-Babylonian astronomers in the sixth century BCE [6] and the periodicity of solar eclipses was deduced in first century BCE by Greek astronomers, who developed the Antikythera mechanism [7] and had understood the Sun, Moon ...

  3. Inex - Wikipedia

    en.wikipedia.org/wiki/Inex

    From the remainder of 0.67351, being near 2 ⁄ 3, every third eclipse will have a similar position in the moon's elliptical orbit and apparent diameter, so the quality of the solar eclipse (total versus annular) will repeat in these groupings of 3 cycles (87 years minus 2 months), called triads. Inex series last much longer than saros series ...

  4. Elliptic orbit - Wikipedia

    en.wikipedia.org/wiki/Elliptic_orbit

    In astrodynamics or celestial mechanics, an elliptic orbit or elliptical orbit is a Kepler orbit with an eccentricity of less than 1; this includes the special case of a circular orbit, with eccentricity equal to 0. In a stricter sense, it is a Kepler orbit with the eccentricity greater than 0 and less than 1 (thus excluding the circular orbit).

  5. Empirical evidence for the spherical shape of Earth - Wikipedia

    en.wikipedia.org/wiki/Empirical_evidence_for_the...

    Latter phases of the partial lunar eclipse on 17 July 2019 taken from Gloucestershire, United Kingdom. The shadow of Earth on the Moon during a lunar eclipse is always a dark circle that moves from one side of the Moon to the other (partially grazing it during a partial eclipse). The only shape that casts a round shadow no matter which ...

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  7. Solar eclipses on the Moon - Wikipedia

    en.wikipedia.org/wiki/Solar_eclipses_on_the_Moon

    A simulation of the start and end of the August 28, 2007 lunar eclipse, viewed from the center of the Moon. [2] Solar eclipses on the Moon are caused when the planet Earth passes in front of the Sun and blocks its light. Viewers on Earth experience a lunar eclipse during a solar eclipse on the Moon.

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