Solar eclipse of March 29, 2025

A partial solar eclipse occurred at the Moon’s ascending node (new moon) of orbit on Saturday, March 29, 2025,[1] with a magnitude of 0.9376.[2] 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 occurred in the polar regions of the Earth when the center of the Moon's shadow misses the Earth.

Solar eclipse of March 29, 2025
Partial eclipse
Partial from Halifax, Canada, shortly after maximum
Map
Gamma1.0405
Magnitude0.9376
Maximum eclipse
Coordinates61°06′N 77°06′W / 61.1°N 77.1°W / 61.1; -77.1
Times (UTC)
Greatest eclipse10:48:36
References
Saros149 (21 of 71)
Catalog # (SE5000)9563
A animated path of the 2025 partial solar eclipse

The partial eclipse was visible for parts of the northeastern United States, eastern Canada, Greenland, Europe, Northwest Africa, and northwestern Russia.

Eclipse details

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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.[3]

Times
Event Time
First penumbral external contact 08:51:52.5 UTC
Greatest eclipse 10:48:36 UTC [2]
Ecliptic conjunction 10:58:59.4 UTC
Equatorial conjunction 11:47:27.0 UTC
Last penumbral external contact 12:44:54.0 UTC
 
Image credit: NASA's Scientific Visualization Studio [4]
Parameters
Parameter Value
Eclipse magnitude 0.93760
Eclipse obscuration 0.93057
Gamma 1.0405 [2]
Sun right ascension 00h 33m 03.1s
Sun declination +03° 33' 55.0"
Sun semi-diameter 16' 01.1"
Sun equatorial horizontal parallax 08.8"
Moon right ascension 00h 31m 00.8s
Moon declination +04° 29' 34.1"
Moon semi-diameter 16'39.4"
Moon equatorial horizontal parallax 1° 01' 07.8"
ΔT (which is TDUT [5]) 75 s [2]

Images

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Solar eclipses of 2022–2025

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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. [6]

Solar eclipse series sets from 2022 to 2025
Ascending node   Descending node
Saros Map Gamma Saros Map Gamma
119
 
Partial in CTIO, Chile
April 30, 2022
 
Partial
−1.19008 124
 
Partial from Saratov, Russia
October 25, 2022
 
Partial
1.07014
129
 
Partial in Magetan, Indonesia
April 20, 2023
 
Hybrid
−0.39515 134
 
Annularity in Hobbs, NM, USA
October 14, 2023
 
Annular
0.37534
139
 
Totality in Dallas, TX, USA
April 8, 2024
 
Total
0.34314 144
 
Annularity in Santa Cruz Province, Argentina
October 2, 2024
 
Annular
−0.35087
149
 
Partial from Halifax, Canada
March 29, 2025
 
Partial
1.04053 154 September 21, 2025
 
Partial
−1.06509

Eclipse season

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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.

Other eclipse of March 2025 season
March 14
Descending node (full moon)
 
Total lunar eclipse
Lunar Saros 123

Other eclipses in 2025

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Tzolkinex

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The tzolkinex is equal to 2598.691 days (about 7 years, 1 month and 12 days).

Before-After

Solar: February 15, 2018May 9, 2032

Tritos series

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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 18, 2188 (part of Saros 164) and November 18, 2199 (part of Saros 165) are also a part of this series but are not included in the table below.

Series members between 1801 and 2134
 
December 10, 1806
(Saros 129)
 
November 9, 1817
(Saros 130)
 
October 9, 1828
(Saros 131)
 
September 7, 1839
(Saros 132)
 
August 7, 1850
(Saros 133)
 
July 8, 1861
(Saros 134)
 
June 6, 1872
(Saros 135)
 
May 6, 1883
(Saros 136)
 
April 6, 1894
(Saros 137)
 
March 6, 1905
(Saros 138)
 
February 3, 1916
(Saros 139)
 
January 3, 1927
(Saros 140)
 
December 2, 1937
(Saros 141)
 
November 1, 1948
(Saros 142)
 
October 2, 1959
(Saros 143)
 
August 31, 1970
(Saros 144)
 
July 31, 1981
(Saros 145)
 
June 30, 1992
(Saros 146)
 
May 31, 2003
(Saros 147)
 
April 29, 2014
(Saros 148)
 
March 29, 2025
(Saros 149)
 
February 27, 2036
(Saros 150)
 
January 26, 2047
(Saros 151)
 
December 26, 2057
(Saros 152)
 
November 24, 2068
(Saros 153)
 
October 24, 2079
(Saros 154)
 
September 23, 2090
(Saros 155)
 
August 24, 2101
(Saros 156)
 
July 23, 2112
(Saros 157)
 
June 23, 2123
(Saros 158)
 
May 23, 2134
(Saros 159)

Before-After

Solar: April 29, 2014February 27, 2036

Saros 149

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This eclipse is a part of Saros series 149, repeating every 18 years, 11 days, 8 hours [7] and containing 71 events. The series started with a partial solar eclipse on August 21, 1664. It contains total eclipses from April 9, 2043 through October 2, 2331; hybrid eclipses from October 13, 2349, through November 3, 2385; and annular eclipses from November 15, 2403, through July 13, 2800. The series ends at member 71 as a partial eclipse on September 28, 2926. 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 31 at 4 minutes, 10 seconds on July 17, 2205, and the longest duration of annularity will be produced by member 62 at 5 minutes, 6 seconds on June 21, 2764. All eclipses in this series occur at the Moon’s ascending node of orbit.[8]

Series members 9–30 occur between 1801 and 2200:
9 10 11
 
November 18, 1808
 
November 29, 1826
 
December 9, 1844
12 13 14
 
December 21, 1862
 
December 31, 1880
 
January 11, 1899
15 16 17
 
January 23, 1917
 
February 3, 1935
 
February 14, 1953
18 19 20
 
February 25, 1971
 
March 7, 1989
 
March 19, 2007
21 22 23
 
March 29, 2025
 
April 9, 2043
 
April 20, 2061
24 25 26
 
May 1, 2079
 
May 11, 2097
 
May 24, 2115
27 28 29
 
June 3, 2133
 
June 14, 2151
 
June 25, 2169
30
 
July 6, 2187


Before-After

Solar: March 19, 2007 April 9, 2043

Before-After: Half-Saros

Lunar: March 23, 2016April 3, 2034

Metonic series

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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.

20 eclipse events between June 10, 1964 and August 21, 2036
June 10–11 March 28–29 January 14–16 November 3 August 21–22
117 119 121 123 125
 
June 10, 1964
 
March 28, 1968
 
January 16, 1972
 
November 3, 1975
 
August 22, 1979
127 129 131 133 135
 
June 11, 1983
 
March 29, 1987
 
January 15, 1991
 
November 3, 1994
 
August 22, 1998
137 139 141 143 145
 
June 10, 2002
 
March 29, 2006
 
January 15, 2010
 
November 3, 2013
 
August 21, 2017
147 149 151 153 155
 
June 10, 2021
 
March 29, 2025
 
January 14, 2029
 
November 3, 2032
 
August 21, 2036

Before-After

Solar: June 10, 2021January 14, 2029

Inex series

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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.

Series members between 1801 and 2200
 
August 16, 1822
(Saros 142)
 
July 28, 1851
(Saros 143)
 
July 7, 1880
(Saros 144)
 
June 17, 1909
(Saros 145)
 
May 29, 1938
(Saros 146)
 
May 9, 1967
(Saros 147)
 
April 17, 1996
(Saros 148)
 
March 29, 2025
(Saros 149)
 
March 9, 2054
(Saros 150)
 
February 16, 2083
(Saros 151)
 
January 29, 2112
(Saros 152)
 
January 8, 2141
(Saros 153)
 
December 18, 2169
(Saros 154)
 
November 28, 2198
(Saros 155)

Before-After

Solar: April 17, 1996March 9, 2054

Triad

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A triad occurs about every 87 years.

Before-After

Solar: May 29, 1938January 29, 2112

References

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  1. ^ "March 29, 2025 Partial Solar Eclipse". timeanddate. Retrieved August 13, 2024.
  2. ^ a b c d Michael S. Kirk. "Catalog of Solar Eclipses: 2001 to 2100". eclipse.gsfc.nasa.gov. Heliophysics Science Division, Code 670 NASA Goddard Space Flight Center Greenbelt, MD 20771, USA.
  3. ^ "Partial Solar Eclipse of 2025 Mar 29". EclipseWise.com. Retrieved August 13, 2024.
  4. ^ Joe Rao (March 28, 2025). "What will happen during the partial solar eclipse tomorrow?". www.space.com. SPACE. Retrieved March 28, 2025.
  5. ^ Michael S. Kirk (January 29, 2009). "Delta T (ΔT)". eclipse.gsfc.nasa.gov. Heliophysics Science Division, Code 670 NASA Goddard Space Flight Center Greenbelt, MD 20771, USA. Retrieved March 28, 2025.
  6. ^ van Gent, R.H. "Solar- and Lunar-Eclipse Predictions from Antiquity to the Present". A Catalogue of Eclipse Cycles. Utrecht University. Retrieved October 6, 2018.
  7. ^ Aveni, Anthony (April 25, 2017). "5. Babylonian Decryptions". In the Shadow of the Moon The Science, Magic, and Mystery of Solar Eclipses. Yale University Press. ISBN 9780300227574.
  8. ^ "NASA – Catalog of Solar Eclipses of Saros 149". eclipse.gsfc.nasa.gov.
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