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.[3]
The partial solar eclipse on May 20, 2069 occurs in the previous lunar year eclipse set.
This eclipse is a part of Saros series 125, repeating every 18 years, 11 days, and containing 73 events. The series started with a partial solar eclipse on February 4, 1060. It contains total eclipses from June 13, 1276 through July 16, 1330; hybrid eclipses on July 26, 1348 and August 7, 1366; and annular eclipses from August 17, 1384 through August 22, 1979. The series ends at member 73 as a partial eclipse on April 9, 2358. 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 was produced by member 14 at 1 minutes, 11 seconds on June 25, 1294, and the longest duration of annularity was produced by member 48 at 7 minutes, 23 seconds on July 10, 1907. All eclipses in this series occur at the Moon’s ascending node of orbit.[4]
| Series members 43–64 occur between 1801 and 2200: |
|---|
| 43 |
44 |
45 |
May 16, 1817 |
May 27, 1835 |
June 6, 1853 |
| 46 |
47 |
48 |
June 18, 1871 |
June 28, 1889 |
July 10, 1907 |
| 49 |
50 |
51 |
July 20, 1925 |
August 1, 1943 |
August 11, 1961 |
| 52 |
53 |
54 |
August 22, 1979 |
September 2, 1997 |
September 13, 2015 |
| 55 |
56 |
57 |
September 23, 2033 |
October 4, 2051 |
October 15, 2069 |
| 58 |
59 |
60 |
October 26, 2087 |
November 6, 2105 |
November 18, 2123 |
| 61 |
62 |
63 |
November 28, 2141 |
December 9, 2159 |
December 20, 2177 |
| 64 |
December 31, 2195 |
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.
| 23 eclipse events between August 3, 2054 and October 16, 2145 |
|---|
| August 3–4 |
May 22–24 |
March 10–11 |
December 27–29 |
October 14–16 |
| 117 |
119 |
121 |
123 |
125 |
August 3, 2054 |
May 22, 2058 |
March 11, 2062 |
December 27, 2065 |
October 15, 2069 |
| 127 |
129 |
131 |
133 |
135 |
August 3, 2073 |
May 22, 2077 |
March 10, 2081 |
December 27, 2084 |
October 14, 2088 |
| 137 |
139 |
141 |
143 |
145 |
August 3, 2092 |
May 22, 2096 |
March 10, 2100 |
December 29, 2103 |
October 16, 2107 |
| 147 |
149 |
151 |
153 |
155 |
August 4, 2111 |
May 24, 2115 |
March 11, 2119 |
December 28, 2122 |
October 16, 2126 |
| 157 |
159 |
161 |
163 |
165 |
August 4, 2130 |
May 23, 2134 |
|
|
October 16, 2145 |
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 March 27, 1884 (part of Saros 108) and December 24, 1916 (part of Saros 111) are also a part of this series but are not included in the table below.
| Series members between 1971 and 2200 |
|---|
July 22, 1971
(Saros 116) |
June 21, 1982
(Saros 117) |
May 21, 1993
(Saros 118) |
April 19, 2004
(Saros 119) |
March 20, 2015
(Saros 120) |
February 17, 2026
(Saros 121) |
January 16, 2037
(Saros 122) |
December 16, 2047
(Saros 123) |
November 16, 2058
(Saros 124) |
October 15, 2069
(Saros 125) |
September 13, 2080
(Saros 126) |
August 15, 2091
(Saros 127) |
July 15, 2102
(Saros 128) |
June 13, 2113
(Saros 129) |
May 14, 2124
(Saros 130) |
April 13, 2135
(Saros 131) |
March 12, 2146
(Saros 132) |
February 9, 2157
(Saros 133) |
January 10, 2168
(Saros 134) |
December 9, 2178
(Saros 135) |
November 8, 2189
(Saros 136) |
October 9, 2200
(Saros 137) |
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 |
|---|
April 14, 1809
(Saros 116) |
March 25, 1838
(Saros 117) |
March 6, 1867
(Saros 118) |
February 13, 1896
(Saros 119) |
January 24, 1925
(Saros 120) |
January 5, 1954
(Saros 121) |
December 15, 1982
(Saros 122) |
November 25, 2011
(Saros 123) |
November 4, 2040
(Saros 124) |
October 15, 2069
(Saros 125) |
September 25, 2098
(Saros 126) |
September 6, 2127
(Saros 127) |
August 16, 2156
(Saros 128) |
July 26, 2185
(Saros 129) |
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