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Future annular solar eclipse From Wikipedia, the free encyclopedia
An annular solar eclipse will occur at the Moon's ascending node of orbit on Monday, March 10, 2081,[1] with a magnitude of 0.9304. 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 2.3 days after apogee (on March 8, 2081, at 6:10 UTC), the Moon's apparent diameter will be smaller.[2]
The path of annularity will be visible from parts of Chile, Argentina, southeastern Liberia, southern Côte d'Ivoire, Ghana, Togo, Benin, Nigeria, Cameroon, and the western Central African Republic. A partial solar eclipse will also be visible for parts of South America, Antarctica, Africa, and Southern Europe.
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]
| Event | Time (UTC) |
|---|---|
| First Penumbral External Contact | 2081 March 10 at 12:22:46.4 UTC |
| First Umbral External Contact | 2081 March 10 at 13:30:23.7 UTC |
| First Central Line | 2081 March 10 at 13:33:33.4 UTC |
| First Umbral Internal Contact | 2081 March 10 at 13:36:43.7 UTC |
| First Penumbral Internal Contact | 2081 March 10 at 14:57:39.7 UTC |
| Equatorial Conjunction | 2081 March 10 at 14:59:36.9 UTC |
| Greatest Duration | 2081 March 10 at 15:14:48.8 UTC |
| Ecliptic Conjunction | 2081 March 10 at 15:19:08.3 UTC |
| Greatest Eclipse | 2081 March 10 at 15:23:30.7 UTC |
| Last Penumbral Internal Contact | 2081 March 10 at 15:49:56.8 UTC |
| Last Umbral Internal Contact | 2081 March 10 at 17:10:33.8 UTC |
| Last Central Line | 2081 March 10 at 17:13:42.3 UTC |
| Last Umbral External Contact | 2081 March 10 at 17:16:50.1 UTC |
| Last Penumbral External Contact | 2081 March 10 at 18:24:21.0 UTC |
| Parameter | Value |
|---|---|
| Eclipse Magnitude | 0.93039 |
| Eclipse Obscuration | 0.86563 |
| Gamma | −0.36528 |
| Sun Right Ascension | 23h25m55.3s |
| Sun Declination | -03°40'25.8" |
| Sun Semi-Diameter | 16'06.3" |
| Sun Equatorial Horizontal Parallax | 08.9" |
| Moon Right Ascension | 23h26m33.6s |
| Moon Declination | -03°57'43.0" |
| Moon Semi-Diameter | 14'46.5" |
| Moon Equatorial Horizontal Parallax | 0°54'13.5" |
| ΔT | 106.4 s |
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.
| March 10 Ascending node (new moon) | March 25 Descending node (full moon) |
|---|---|
| |
| Annular solar eclipse Solar Saros 131 | Partial lunar eclipse Lunar Saros 143 |
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 July 15, 2083 occurs in the next lunar year eclipse set.
| Solar eclipse series sets from 2080 to 2083 | ||||||
|---|---|---|---|---|---|---|
| Ascending node | Descending node | |||||
| Saros | Map | Gamma | Saros | Map | Gamma | |
| 121 | March 21, 2080 Partial |
−1.0578 | 126 | September 13, 2080 Partial |
1.0723 | |
| 131 | March 10, 2081 Annular |
−0.3653 | 136 | September 3, 2081 Total |
0.3378 | |
| 141 | February 27, 2082 Annular |
0.3361 | 146 | August 24, 2082 Total |
−0.4004 | |
| 151 | February 16, 2083 Partial |
1.017 | 156 | August 13, 2083 Partial |
−1.2064 | |
This eclipse is a part of Saros series 131, repeating every 18 years, 11 days, and containing 70 events. The series started with a partial solar eclipse on August 1, 1125. It contains total eclipses from March 27, 1522 through May 30, 1612; hybrid eclipses from June 10, 1630 through July 24, 1702; and annular eclipses from August 4, 1720 through June 18, 2243. The series ends at member 70 as a partial eclipse on September 2, 2369. 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 28 at 58 seconds on May 30, 1612, and the longest duration of annularity was produced by member 50 at 7 minutes, 54 seconds on January 26, 2009. All eclipses in this series occur at the Moon’s ascending node of orbit.[5]
| Series members 39–60 occur between 1801 and 2200: | ||
|---|---|---|
| 39 | 40 | 41 |
 September 28, 1810 |
 October 9, 1828 |
 October 20, 1846 |
| 42 | 43 | 44 |
 October 30, 1864 |
 November 10, 1882 |
 November 22, 1900 |
| 45 | 46 | 47 |
 December 3, 1918 |
 December 13, 1936 |
 December 25, 1954 |
| 48 | 49 | 50 |
 January 4, 1973 |
 January 15, 1991 |
 January 26, 2009 |
| 51 | 52 | 53 |
 February 6, 2027 |
 February 16, 2045 |
 February 28, 2063 |
| 54 | 55 | 56 |
March 10, 2081 |
 March 21, 2099 |
 April 2, 2117 |
| 57 | 58 | 59 |
 April 13, 2135 |
 April 23, 2153 |
 May 5, 2171 |
| 60 | ||
 May 15, 2189 | ||
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.
| Series members between 1801 and 2200 | ||||
|---|---|---|---|---|
 March 25, 1819 (Saros 107) |
 February 23, 1830 (Saros 108) |
 January 22, 1841 (Saros 109) |
 November 21, 1862 (Saros 111) | |
 August 20, 1895 (Saros 114) |
 July 21, 1906 (Saros 115) |
 June 19, 1917 (Saros 116) | ||
 May 19, 1928 (Saros 117) |
 April 19, 1939 (Saros 118) |
 March 18, 1950 (Saros 119) |
 February 15, 1961 (Saros 120) |
 January 16, 1972 (Saros 121) |
 December 15, 1982 (Saros 122) |
 November 13, 1993 (Saros 123) |
 October 14, 2004 (Saros 124) |
 September 13, 2015 (Saros 125) |
 August 12, 2026 (Saros 126) |
 July 13, 2037 (Saros 127) |
 June 11, 2048 (Saros 128) |
 May 11, 2059 (Saros 129) |
 April 11, 2070 (Saros 130) |
March 10, 2081 (Saros 131) |
 February 7, 2092 (Saros 132) |
 January 8, 2103 (Saros 133) |
 December 8, 2113 (Saros 134) |
 November 6, 2124 (Saros 135) |
 October 7, 2135 (Saros 136) |
 September 6, 2146 (Saros 137) |
 August 5, 2157 (Saros 138) |
 July 5, 2168 (Saros 139) |
 June 5, 2179 (Saros 140) |
 May 4, 2190 (Saros 141) |
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 | ||
|---|---|---|
 September 7, 1820 (Saros 122) |
 August 18, 1849 (Saros 123) |
 July 29, 1878 (Saros 124) |
 July 10, 1907 (Saros 125) |
 June 19, 1936 (Saros 126) |
 May 30, 1965 (Saros 127) |
 May 10, 1994 (Saros 128) |
 April 20, 2023 (Saros 129) |
 March 30, 2052 (Saros 130) |
March 10, 2081 (Saros 131) |
 February 18, 2110 (Saros 132) |
 January 30, 2139 (Saros 133) |
 January 10, 2168 (Saros 134) |
 December 19, 2196 (Saros 135) |
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