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    • Source: April 1949 lunar eclipse

      • A total lunar eclipse occurred at the Moon’s descending node of orbit on Wednesday, April 13, 1949, with an umbral magnitude of 1.4251. 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 19 hours after perigee (on April 12, 1949, at 9:35 UTC), the Moon's apparent diameter was larger.
      This lunar eclipse was the first of a tetrad, with four total lunar eclipses in series, the others being on October 7, 1949; April 2, 1950; and September 26, 1950.


      Visibility


      The eclipse was completely visible over central and eastern North America, South America, and Antarctica, seen rising over western North America and the central Pacific Ocean and setting over Africa, Europe, and the Middle East.


      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 1949

      =
      A total lunar eclipse on April 13.
      A partial solar eclipse on April 28.
      A total lunar eclipse on October 7.
      A partial solar eclipse on October 21.


      = Metonic

      =
      Preceded by: Lunar eclipse of June 25, 1945
      Followed by: Lunar eclipse of January 29, 1953


      = Tzolkinex

      =
      Preceded by: Lunar eclipse of March 3, 1942
      Followed by: Lunar eclipse of May 24, 1956


      = Half-Saros

      =
      Preceded by: Solar eclipse of April 7, 1940
      Followed by: Solar eclipse of April 19, 1958


      = Tritos

      =
      Preceded by: Lunar eclipse of May 14, 1938
      Followed by: Lunar eclipse of March 13, 1960


      = Lunar Saros 121

      =
      Preceded by: Lunar eclipse of April 2, 1931
      Followed by: Lunar eclipse of April 24, 1967


      = Inex

      =
      Preceded by: Lunar eclipse of May 3, 1920
      Followed by: Lunar eclipse of March 24, 1978


      = Triad

      =
      Preceded by: Lunar eclipse of June 12, 1862
      Followed by: Lunar eclipse of February 11, 2036


      = Lunar eclipses of 1948–1951

      =


      = 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


      Notes




      External links


      1949 Apr 13 chart Eclipse Predictions by Fred Espenak, NASA/GSFC

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