• Source: Solar eclipse of November 12, 1985

      • A total solar eclipse occurred at the Moon's descending node of orbit on Tuesday, November 12, 1985, with a magnitude of 1.0388. 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 total solar eclipse occurs when the Moon's apparent diameter is larger than the Sun's, blocking all direct sunlight, turning day into darkness. Totality occurs in a narrow path across Earth's surface, with the partial solar eclipse visible over a surrounding region thousands of kilometres wide. Occurring about 2 hours after perigee (on November 12, 1985, at 12:30 UTC), the Moon's apparent diameter was larger. Perigee did occur during the early portion of the eclipse.
      Totality was visible only near Antarctica. A partial eclipse was visible for parts of southern South America and Antarctica.


      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 1985

      =
      A total lunar eclipse on May 4.
      A partial solar eclipse on May 19.
      A total lunar eclipse on October 28.
      A total solar eclipse on November 12.


      = Metonic

      =
      Preceded by: Solar eclipse of January 25, 1982
      Followed by: Solar eclipse of August 31, 1989


      = Tzolkinex

      =
      Preceded by: Solar eclipse of October 2, 1978
      Followed by: Solar eclipse of December 24, 1992


      = Half-Saros

      =
      Preceded by: Lunar eclipse of November 6, 1976
      Followed by: Lunar eclipse of November 18, 1994


      = Tritos

      =
      Preceded by: Solar eclipse of December 13, 1974
      Followed by: Solar eclipse of October 12, 1996


      = Solar Saros 152

      =
      Preceded by: Solar eclipse of November 2, 1967
      Followed by: Solar eclipse of November 23, 2003


      = Inex

      =
      Preceded by: Solar eclipse of December 2, 1956
      Followed by: Solar eclipse of October 23, 2014


      = Triad

      =
      Preceded by: Solar eclipse of January 11, 1899
      Followed by: Solar eclipse of September 12, 2072


      = Solar eclipses of 1982–1985

      =
      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 25, 1982 and July 20, 1982 occur in the previous lunar year eclipse set.


      = Saros 152

      =
      This eclipse is a part of Saros series 152, repeating every 18 years, 11 days, and containing 70 events. The series started with a partial solar eclipse on July 26, 1805. It contains total eclipses from November 2, 1967 through September 14, 2490; hybrid eclipses from September 26, 2508 through October 17, 2544; and annular eclipses from October 29, 2562 through June 16, 2941. The series ends at member 70 as a partial eclipse on August 20, 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 totality will be produced by member 30 at 5 minutes, 16 seconds on June 9, 2328, and the longest duration of annularity will be produced by member 53 at 5 minutes, 20 seconds on February 16, 2743. All eclipses in this series occur at the Moon’s descending 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 descending 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 eclipse on November 4, 2116 (part of Saros 164) is also a part of this series but is 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.


      Notes




      References


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

    Kata Kunci Pencarian: