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    • Source: Solar eclipse of April 28, 1949

      • A partial solar eclipse occurred at the Moon's ascending node of orbit on Thursday, April 28, 1949, with a magnitude of 0.6092. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. A partial solar eclipse occurs in the polar regions of the Earth when the center of the Moon's shadow misses the Earth.
      A partial eclipse was visible for parts of North Africa, Europe, the Soviet Union, Greenland, and northern Canada.


      Eclipse details


      Shown below are two tables displaying details about this particular solar eclipse. The first table outlines times at which the moon's penumbra or umbra attains the specific parameter, and the second table describes various other 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: Solar eclipse of July 9, 1945
      Followed by: Solar eclipse of February 14, 1953


      = Tzolkinex

      =
      Preceded by: Solar eclipse of March 16, 1942
      Followed by: Solar eclipse of June 8, 1956


      = Half-Saros

      =
      Preceded by: Lunar eclipse of April 22, 1940
      Followed by: Lunar eclipse of May 3, 1958


      = Tritos

      =
      Preceded by: Solar eclipse of May 29, 1938
      Followed by: Solar eclipse of March 27, 1960


      = Solar Saros 147

      =
      Preceded by: Solar eclipse of April 18, 1931
      Followed by: Solar eclipse of May 9, 1967


      = Inex

      =
      Preceded by: Solar eclipse of May 18, 1920
      Followed by: Solar eclipse of April 7, 1978


      = Triad

      =
      Preceded by: Solar eclipse of June 27, 1862
      Followed by: Solar eclipse of February 27, 2036


      = Solar eclipses of 1946–1949

      =
      This eclipse is a member of a semester series. An eclipse in a semester series of solar eclipses repeats approximately every 177 days and 4 hours (a semester) at alternating nodes of the Moon's orbit.
      The partial solar eclipses on January 3, 1946 and June 29, 1946 occur in the previous lunar year eclipse set.


      = Saros 147

      =
      This eclipse is a part of Saros series 147, repeating every 18 years, 11 days, and containing 80 events. The series started with a partial solar eclipse on October 12, 1624. It contains annular eclipses from May 31, 2003 through July 31, 2706. There are no hybrid or total eclipses in this set. The series ends at member 80 as a partial eclipse on February 24, 3049. Its eclipses are tabulated in three columns; every third eclipse in the same column is one exeligmos apart, so they all cast shadows over approximately the same parts of the Earth.
      The longest duration of annularity will be produced by member 38 at 9 minutes, 41 seconds on November 21, 2291. All eclipses in this series occur at the Moon’s ascending node of orbit.


      = Metonic series

      =
      The metonic series repeats eclipses every 19 years (6939.69 days), lasting about 5 cycles. Eclipses occur in nearly the same calendar date. In addition, the octon subseries repeats 1/5 of that or every 3.8 years (1387.94 days). All eclipses in this table occur at the Moon's ascending node.


      = Tritos series

      =
      This eclipse is a part of a tritos cycle, repeating at alternating nodes every 135 synodic months (≈ 3986.63 days, or 11 years minus 1 month). Their appearance and longitude are irregular due to a lack of synchronization with the anomalistic month (period of perigee), but groupings of 3 tritos cycles (≈ 33 years minus 3 months) come close (≈ 434.044 anomalistic months), so eclipses are similar in these groupings.
      The partial solar eclipses on November 16, 2134 (part of Saros 164) and October 16, 2145 (part of Saros 165) are also a part of this series but are not included in the table below.


      = Inex series

      =
      This eclipse is a part of the long period inex cycle, repeating at alternating nodes, every 358 synodic months (≈ 10,571.95 days, or 29 years minus 20 days). Their appearance and longitude are irregular due to a lack of synchronization with the anomalistic month (period of perigee). However, groupings of 3 inex cycles (≈ 87 years minus 2 months) comes close (≈ 1,151.02 anomalistic months), so eclipses are similar in these groupings.


      References




      External links


      Earth visibility chart and eclipse statistics Eclipse Predictions by Fred Espenak, NASA/GSFC
      Besselian elements

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