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    • Source: April 1931 lunar eclipse

      • A total lunar eclipse occurred at the Moon’s descending node of orbit on Thursday, April 2, 1931, with an umbral magnitude of 1.5021. A lunar eclipse occurs when the Moon moves into the Earth's shadow, causing the Moon to be darkened. A total lunar eclipse occurs when the Moon's near side entirely passes into the Earth's umbral shadow. 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. A total lunar eclipse can last up to nearly two hours, while a total solar eclipse lasts only a few minutes at any given place, because the Moon's shadow is smaller. Occurring only about 24 hours after perigee (on April 1, 1931, at 22:05 UTC), the Moon's apparent diameter was larger.


      Visibility


      The eclipse was completely visible over central and east Africa, eastern Europe, and much of Asia, seen rising over west Africa, western Europe, and much of South America and setting over east and northeast Asia and Australia.


      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 1931

      =
      A total lunar eclipse on April 2.
      A partial solar eclipse on April 18.
      A partial solar eclipse on September 12.
      A total lunar eclipse on September 26.
      A partial solar eclipse on October 11.


      = Metonic

      =
      Preceded by: Lunar eclipse of June 15, 1927
      Followed by: Lunar eclipse of January 19, 1935


      = Tzolkinex

      =
      Preceded by: Lunar eclipse of February 20, 1924
      Followed by: Lunar eclipse of May 14, 1938


      = Half-Saros

      =
      Preceded by: Solar eclipse of March 28, 1922
      Followed by: Solar eclipse of April 7, 1940


      = Tritos

      =
      Preceded by: Lunar eclipse of May 3, 1920
      Followed by: Lunar eclipse of March 3, 1942


      = Lunar Saros 121

      =
      Preceded by: Lunar eclipse of March 22, 1913
      Followed by: Lunar eclipse of April 13, 1949


      = Inex

      =
      Preceded by: Lunar eclipse of April 22, 1902
      Followed by: Lunar eclipse of March 13, 1960


      = Triad

      =
      Preceded by: Lunar eclipse of May 31, 1844
      Followed by: Lunar eclipse of January 31, 2018


      = Lunar eclipses of 1930–1933

      =


      = Saros 121

      =


      = 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 total solar eclipses of Solar Saros 128.


      See also


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


      References




      External links


      1931 Apr 02 chart Eclipse Predictions by Fred Espenak, NASA/GSFC

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