• Source: Solar eclipse of February 15, 2018

      • A partial solar eclipse occurred at the Moon's descending node of orbit on Thursday, February 15, 2018, with a magnitude of 0.5991. 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 Antarctica and southern South America.


      Images




      Gallery













      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 2018

      =
      A total lunar eclipse on January 31.
      A partial solar eclipse on February 15.
      A partial solar eclipse on July 13.
      A total lunar eclipse on July 27.
      A partial solar eclipse on August 11.


      = Metonic

      =
      Preceded by: Solar eclipse of April 29, 2014
      Followed by: Solar eclipse of December 4, 2021


      = Tzolkinex

      =
      Preceded by: Solar eclipse of January 4, 2011
      Followed by: Solar eclipse of March 29, 2025


      = Half-Saros

      =
      Preceded by: Lunar eclipse of February 9, 2009
      Followed by: Lunar eclipse of February 20, 2027


      = Tritos

      =
      Preceded by: Solar eclipse of March 19, 2007
      Followed by: Solar eclipse of January 14, 2029


      = Solar Saros 150

      =
      Preceded by: Solar eclipse of February 5, 2000
      Followed by: Solar eclipse of February 27, 2036


      = Inex

      =
      Preceded by: Solar eclipse of March 7, 1989
      Followed by: Solar eclipse of January 26, 2047


      = Triad

      =
      Preceded by: Solar eclipse of April 18, 1931
      Followed by: Solar eclipse of December 17, 2104


      = Solar eclipses of 2015–2018

      =
      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 eclipse on July 13, 2018 occurs in the next lunar year eclipse set.


      = Saros 150

      =
      This eclipse is a part of Saros series 150, repeating every 18 years, 11 days, and containing 71 events. The series started with a partial solar eclipse on August 24, 1729. It contains annular eclipses from April 22, 2126 through June 22, 2829. There are no hybrid or total eclipses in this set. The series ends at member 71 as a partial eclipse on September 29, 2991. 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 45 at 9 minutes, 58 seconds on December 19, 2522. 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 eclipses on December 7, 2170 (part of Saros 164) and November 7, 2181 (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



      NASA chart
      NASA animation
      Partial Solar Eclipse of 2018 February 15
      APOD 2/20/2018

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