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Solar eclipse of September 23, 2071

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Solar eclipse of September 23, 2071
Map
Type of eclipse
NatureTotal
Gamma0.262
Magnitude1.0333
Maximum eclipse
Duration191 s (3 min 11 s)
Coordinates14°12′N 76°42′W / 14.2°N 76.7°W / 14.2; -76.7
Max. width of band116 km (72 mi)
Times (UTC)
Greatest eclipse17:20:28
References
Saros145 (25 of 77)
Catalog # (SE5000)9668

A total solar eclipse will occur at the Moon's ascending node of orbit on Wednesday, September 23, 2071,[1] with a magnitude of 1.0333. 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 2.5 days before perigee (on September 21, 2071, at 5:10 UTC), the Moon's apparent diameter will be larger.[2]

The path of totality will be visible from parts of northern Mexico, northern Colombia, Venezuela, Guyana, far northern Brazil, Suriname, and French Guiana. A partial solar eclipse will also be visible for parts of Hawaii, North America, Central America, the Caribbean, northern and central South America, and West Africa.

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]

September 23, 2071 Solar Eclipse Times
Event Time (UTC)
First Penumbral External Contact 2071 September 23 at 14:38:55.1 UTC
First Umbral External Contact 2071 September 23 at 15:37:23.6 UTC
First Central Line 2071 September 23 at 15:37:53.7 UTC
First Umbral Internal Contact 2071 September 23 at 15:38:23.8 UTC
First Penumbral Internal Contact 2071 September 23 at 16:40:44.4 UTC
Equatorial Conjunction 2071 September 23 at 17:11:32.7 UTC
Greatest Duration 2071 September 23 at 17:18:47.4 UTC
Greatest Eclipse 2071 September 23 at 17:20:28.0 UTC
Ecliptic Conjunction 2071 September 23 at 17:23:14.4 UTC
Last Penumbral Internal Contact 2071 September 23 at 18:00:25.0 UTC
Last Umbral Internal Contact 2071 September 23 at 19:02:41.8 UTC
Last Central Line 2071 September 23 at 19:03:09.5 UTC
Last Umbral External Contact 2071 September 23 at 19:03:37.1 UTC
Last Penumbral External Contact 2071 September 23 at 20:02:10.4 UTC
September 23, 2071 Solar Eclipse Parameters
Parameter Value
Eclipse Magnitude 1.03329
Eclipse Obscuration 1.06769
Gamma 0.26200
Sun Right Ascension 12h02m56.7s
Sun Declination -00°19'08.2"
Sun Semi-Diameter 15'56.2"
Sun Equatorial Horizontal Parallax 08.8"
Moon Right Ascension 12h03m15.7s
Moon Declination -00°04'20.0"
Moon Semi-Diameter 16'12.3"
Moon Equatorial Horizontal Parallax 0°59'28.3"
ΔT 98.8 s

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.

Eclipse season of September 2071
September 9
Descending node (full moon)
September 23
Ascending node (new moon)
Penumbral lunar eclipse
Lunar Saros 119
Total solar eclipse
Solar Saros 145
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Eclipses in 2071

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Metonic

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Tzolkinex

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Half-Saros

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Tritos

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Solar Saros 145

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Inex

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Triad

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Solar eclipses of 2069–2072

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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.[4]

The partial solar eclipse on May 20, 2069 occurs in the previous lunar year eclipse set.

Solar eclipse series sets from 2069 to 2072
Descending node   Ascending node
Saros Map Gamma Saros Map Gamma
120 April 21, 2069

Partial
1.0624 125 October 15, 2069

Partial
−1.2524
130 April 11, 2070

Total
0.3652 135 October 4, 2070

Annular
−0.495
140 March 31, 2071

Annular
−0.3739 145 September 23, 2071

Total
0.262
150 March 19, 2072

Partial
−1.1405 155 September 12, 2072

Total
0.9655

Saros 145

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This eclipse is a part of Saros series 145, repeating every 18 years, 11 days, and containing 77 events. The series started with a partial solar eclipse on January 4, 1639. It contains an annular eclipse on June 6, 1891; a hybrid eclipse on June 17, 1909; and total eclipses from June 29, 1927 through September 9, 2648. The series ends at member 77 as a partial eclipse on April 17, 3009. 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 was produced by member 15 at 6 seconds (by default) on June 6, 1891, and the longest duration of totality will be produced by member 50 at 7 minutes, 12 seconds on June 25, 2522. All eclipses in this series occur at the Moon’s ascending node of orbit.[5]

Series members 10–32 occur between 1801 and 2200:
10 11 12

April 13, 1801

April 24, 1819

May 4, 1837
13 14 15

May 16, 1855

May 26, 1873

June 6, 1891
16 17 18

June 17, 1909

June 29, 1927

July 9, 1945
19 20 21

July 20, 1963

July 31, 1981

August 11, 1999
22 23 24

August 21, 2017

September 2, 2035

September 12, 2053
25 26 27

September 23, 2071

October 4, 2089

October 16, 2107
28 29 30

October 26, 2125

November 7, 2143

November 17, 2161
31 32

November 28, 2179

December 9, 2197

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.

21 eclipse events between July 13, 2018 and July 12, 2094
July 12–13 April 30–May 1 February 16–17 December 5–6 September 22–23
117 119 121 123 125

July 13, 2018

April 30, 2022

February 17, 2026

December 5, 2029

September 23, 2033
127 129 131 133 135

July 13, 2037

April 30, 2041

February 16, 2045

December 5, 2048

September 22, 2052
137 139 141 143 145

July 12, 2056

April 30, 2060

February 17, 2064

December 6, 2067

September 23, 2071
147 149 151 153 155

July 13, 2075

May 1, 2079

February 16, 2083

December 6, 2086

September 23, 2090
157

July 12, 2094

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.

Series members between 1801 and 2200

October 9, 1809
(Saros 121)

September 7, 1820
(Saros 122)

August 7, 1831
(Saros 123)

July 8, 1842
(Saros 124)

June 6, 1853
(Saros 125)

May 6, 1864
(Saros 126)

April 6, 1875
(Saros 127)

March 5, 1886
(Saros 128)

February 1, 1897
(Saros 129)

January 3, 1908
(Saros 130)

December 3, 1918
(Saros 131)

November 1, 1929
(Saros 132)

October 1, 1940
(Saros 133)

September 1, 1951
(Saros 134)

July 31, 1962
(Saros 135)

June 30, 1973
(Saros 136)

May 30, 1984
(Saros 137)

April 29, 1995
(Saros 138)

March 29, 2006
(Saros 139)

February 26, 2017
(Saros 140)

January 26, 2028
(Saros 141)

December 26, 2038
(Saros 142)

November 25, 2049
(Saros 143)

October 24, 2060
(Saros 144)

September 23, 2071
(Saros 145)

August 24, 2082
(Saros 146)

July 23, 2093
(Saros 147)

June 22, 2104
(Saros 148)

May 24, 2115
(Saros 149)

April 22, 2126
(Saros 150)

March 21, 2137
(Saros 151)

February 19, 2148
(Saros 152)

January 19, 2159
(Saros 153)

December 18, 2169
(Saros 154)

November 17, 2180
(Saros 155)

October 18, 2191
(Saros 156)

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

March 24, 1811
(Saros 136)

March 4, 1840
(Saros 137)

February 11, 1869
(Saros 138)

January 22, 1898
(Saros 139)

January 3, 1927
(Saros 140)

December 14, 1955
(Saros 141)

November 22, 1984
(Saros 142)

November 3, 2013
(Saros 143)

October 14, 2042
(Saros 144)

September 23, 2071
(Saros 145)

September 4, 2100
(Saros 146)

August 15, 2129
(Saros 147)

July 25, 2158
(Saros 148)

July 6, 2187
(Saros 149)

Notes

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  1. ^ "September 23, 2071 Total Solar Eclipse". timeanddate. Retrieved 21 August 2024.
  2. ^ "Moon Distances for London, United Kingdom, England". timeanddate. Retrieved 21 August 2024.
  3. ^ "Total Solar Eclipse of 2071 Sep 23". EclipseWise.com. Retrieved 21 August 2024.
  4. ^ van Gent, R.H. "Solar- and Lunar-Eclipse Predictions from Antiquity to the Present". A Catalogue of Eclipse Cycles. Utrecht University. Retrieved 6 October 2018.
  5. ^ "NASA - Catalog of Solar Eclipses of Saros 145". eclipse.gsfc.nasa.gov.

References

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