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  • Source: April 1948 lunar eclipse

    • A partial lunar eclipse occurred at the Moon’s descending node of orbit on Friday, April 23, 1948, with an umbral magnitude of 0.0230. A lunar eclipse occurs when the Moon moves into the Earth's shadow, causing the Moon to be darkened. A partial lunar eclipse occurs when one part of the Moon is in the Earth's umbra, while the other part is in the Earth's penumbra. Unlike a solar eclipse, which can only be viewed from a relatively small area of the world, a lunar eclipse may be viewed from anywhere on the night side of Earth. Occurring about 3.5 days after perigee (on April 20, 1948, at 2:05 UTC), the Moon's apparent diameter was larger.


    Visibility


    The eclipse was completely visible over east and northeast Asia, Australia, and Antarctica, seen rising over east Africa and the western half of Asia and setting over western North America and the eastern Pacific Ocean.


    Eclipse details


    Shown below is a table displaying details about this particular solar eclipse. It describes various parameters pertaining to this eclipse.


    Eclipse season



    This eclipse is part of an eclipse season, a period, roughly every six months, when eclipses occur. Only two (or occasionally three) eclipse seasons occur each year, and each season lasts about 35 days and repeats just short of six months (173 days) later; thus two full eclipse seasons always occur each year. Either two or three eclipses happen each eclipse season. In the sequence below, each eclipse is separated by a fortnight.


    Related eclipses




    = Eclipses in 1948

    =
    A partial lunar eclipse on April 23.
    An annular solar eclipse on May 9.
    A penumbral lunar eclipse on October 18.
    A total solar eclipse on November 1.


    = Metonic

    =
    Preceded by: Lunar eclipse of July 6, 1944
    Followed by: Lunar eclipse of February 11, 1952


    = Tzolkinex

    =
    Preceded by: Lunar eclipse of March 13, 1941
    Followed by: Lunar eclipse of June 5, 1955


    = Half-Saros

    =
    Preceded by: Solar eclipse of April 19, 1939
    Followed by: Solar eclipse of April 30, 1957


    = Tritos

    =
    Preceded by: Lunar eclipse of May 25, 1937
    Followed by: Lunar eclipse of March 24, 1959


    = Lunar Saros 111

    =
    Preceded by: Lunar eclipse of April 13, 1930
    Followed by: Lunar eclipse of May 4, 1966


    = Inex

    =
    Preceded by: Lunar eclipse of May 15, 1919
    Followed by: Lunar eclipse of April 4, 1977


    = Triad

    =
    Preceded by: Lunar eclipse of June 22, 1861
    Followed by: Lunar eclipse of February 22, 2035


    = Lunar eclipses of 1948–1951

    =


    = Saros 111

    =
    Lunar Saros 111, repeating every 18 years and 11 days, has a total of 71 lunar eclipse events including 11 total lunar eclipses. The first total lunar eclipse of this series was on April 19, 1353, and last was on August 4, 1533. The longest occurrence of this series was on June 12, 1443 when the totality lasted 106 minutes.


    = Half-Saros cycle

    =
    A lunar eclipse will be preceded and followed by solar eclipses by 9 years and 5.5 days (a half saros). This lunar eclipse is related to two annular solar eclipses of Solar Saros 118.


    See also


    List of lunar eclipses
    List of 20th-century lunar eclipses


    Notes




    External links


    1948 Apr 23 chart Eclipse Predictions by Fred Espenak, NASA/GSFC

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