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Solar eclipse of September 21, 2025
Partial solar eclipse From Wikipedia, the free encyclopedia
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A partial solar eclipse occurred at the Moon’s descending node of orbit on Sunday, September 21, 2025,[1] with a magnitude of 0.855. A solar eclipse occurs when the Moon passes between the 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.
Partiality was visible across much of Oceania and Antarctica, with up to 80% coverage being visible at the southernmost point of New Zealand and on Stewart Island on the morning of September 22 local time.[2] Most of New Zealand was covered in cloud on the morning of the eclipse, preventing many sightings.[3]
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Images
Eclipse timing
Places experiencing partial eclipse
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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.[4]
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.
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Related eclipses
Eclipses in 2025
- A total lunar eclipse on March 14.
- A partial solar eclipse on March 29.
- A total lunar eclipse on September 7.
- A partial solar eclipse on September 21.
Metonic
- Preceded by: Solar eclipse of December 4, 2021
- Followed by: Solar eclipse of July 11, 2029
Tzolkinex
- Preceded by: Solar eclipse of August 11, 2018
- Followed by: Solar eclipse of November 3, 2032
Half-Saros
- Preceded by: Lunar eclipse of September 16, 2016
- Followed by: Lunar eclipse of September 28, 2034
Tritos
- Preceded by: Solar eclipse of October 23, 2014
- Followed by: Solar eclipse of August 21, 2036
Solar Saros 154
- Preceded by: Solar eclipse of September 11, 2007
- Followed by: Solar eclipse of October 3, 2043
Inex
- Preceded by: Solar eclipse of October 12, 1996
- Followed by: Solar eclipse of September 2, 2054
Triad
- Preceded by: Solar eclipse of November 21, 1938
- Followed by: Solar eclipse of July 23, 2112
Solar eclipses of 2022–2025
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.[5]
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 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.
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Notes
- The times listed for this location occur on September 22, 2025, local time.
References
External links
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