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    • Source: April 1903 lunar eclipse

      • A partial lunar eclipse occurred at the Moon’s ascending node of orbit on Sunday, April 12, 1903, with an umbral magnitude of 0.9677. 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. The Moon's apparent diameter was near the average diameter because it occurred 6.2 days after perigee (on April 5, 1903, at 18:45 UTC) and 7.1 days before apogee (on April 19, 1903, at 4:35 UTC).
      This nearly total lunar eclipse of Lunar Saros 130 preceded the first total eclipse of the series on April 22, 1921.


      Visibility


      The eclipse was completely visible over eastern South America, Africa, Europe, and Antarctica, seen rising over western South America and much of North America and setting over much of Asia and western 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 1903

      =
      An annular solar eclipse on March 29.
      A partial lunar eclipse on April 12.
      A total solar eclipse on September 21.
      A partial lunar eclipse on October 6.


      = Metonic

      =
      Preceded by: Lunar eclipse of June 23, 1899
      Followed by: Lunar eclipse of January 29, 1907


      = Tzolkinex

      =
      Preceded by: Lunar eclipse of February 28, 1896
      Followed by: Lunar eclipse of May 24, 1910


      = Half-Saros

      =
      Preceded by: Solar eclipse of April 6, 1894
      Followed by: Solar eclipse of April 17, 1912


      = Tritos

      =
      Preceded by: Lunar eclipse of May 11, 1892
      Followed by: Lunar eclipse of March 12, 1914


      = Lunar Saros 130

      =
      Preceded by: Lunar eclipse of March 30, 1885
      Followed by: Lunar eclipse of April 22, 1921


      = Inex

      =
      Preceded by: Lunar eclipse of May 1, 1874
      Followed by: Lunar eclipse of March 22, 1932


      = Triad

      =
      Preceded by: Lunar eclipse of June 10, 1816
      Followed by: Lunar eclipse of February 9, 1990


      = Lunar eclipses of 1901–1904

      =


      = Saros 130

      =
      Lunar saros series 130, repeating every 18 years and 11 days, has a total of 71 lunar eclipse events including 56 umbral lunar eclipses (42 partial lunar eclipses and 14 total lunar eclipses). Solar Saros 137 interleaves with this lunar saros with an event occurring every 9 years 5 days alternating between each saros series.


      = 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 hybrid solar eclipses of Solar Saros 137.


      See also


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


      Notes




      External links


      1903 Apr 12 chart Eclipse Predictions by Fred Espenak, NASA/GSFC

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