An annular solar eclipse will occur at the Moon's descending node of orbit on Saturday, October 3, 2043, with a magnitude of 0.9497. 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. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide. Occurring about 4.8 days before apogee (on October 7, 2043, at 23:20 UTC), the Moon's apparent diameter will be smaller. It will be unusual in that while it is an annular solar eclipse, it is not a central solar eclipse. A non-central eclipse is one where the center-line of annularity does not intersect the surface of the Earth (when the gamma is between 0.9972 and 1.0260). Instead, the center line passes just above the Earth's surface. This rare type occurs when annularity is only visible at sunset or sunrise in a polar region. While the path of annularity will be not visible from any land areas, a partial solar eclipse will be visible for parts of Madagascar, Antarctica, and southwestern Australia. This will be the first of 56 umbral eclipses in Solar Saros 154.
Images Animated path
Eclipse timing
Places experiencing partial eclipse
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 2043 A total lunar eclipse on March 25. A non-central total solar eclipse on April 9. A total lunar eclipse on September 19. A non-central annular solar eclipse on October 3.
Metonic Preceded by: Solar eclipse of December 15, 2039 Followed by: Solar eclipse of July 22, 2047
Tzolkinex Preceded by: Solar eclipse of August 21, 2036 Followed by: Solar eclipse of November 14, 2050
Half-Saros Preceded by: Lunar eclipse of September 28, 2034 Followed by: Lunar eclipse of October 8, 2052
Tritos Preceded by: Solar eclipse of November 3, 2032 Followed by: Solar eclipse of September 2, 2054
Solar Saros 154 Preceded by: Solar eclipse of September 21, 2025 Followed by: Solar eclipse of October 13, 2061
Inex Preceded by: Solar eclipse of October 23, 2014 Followed by: Solar eclipse of September 12, 2072
Triad Preceded by: Solar eclipse of December 2, 1956 Followed by: Solar eclipse of August 4, 2130
Solar eclipses of 2040–2043 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.
Saros 154 This eclipse is a part of Saros series 154, repeating every 18 years, 11 days, and containing 71 events. The series started with a partial solar eclipse on July 19, 1917. It contains annular eclipses from October 3, 2043, through March 27, 2332; hybrid eclipses from April 7, 2350 through April 29, 2386; and total eclipses from May 9, 2404 through May 29, 3035. The series ends at member 71 as a partial eclipse on August 25, 3179. 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 9 at 3 minutes, 41 seconds on October 13, 2061, and the longest duration of totality will be produced by member 35 at 4 minutes, 50 seconds on July 25, 2530. 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.
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 http://eclipse.gsfc.nasa.gov/SEplot/SEplot2001/SE2043Oct03A.GIF