| Annular eclipse | |
 Map | |
| Gamma | −0.448 |
|---|---|
| Magnitude | 0.9734 |
| Maximum eclipse | |
| Duration | 171 s (2 min 51 s) |
| Coordinates | 25°42′S175°00′E / 25.7°S 175°E /-25.7; 175 |
| Max. width of band | 106 km (66 mi) |
| Times (UTC) | |
| Greatest eclipse | 23:39:10 |
| References | |
| Saros | 135 (41 of 71) |
| Catalog # (SE5000) | 9624 |
An annularsolar eclipse will occur at the Moon'sascending node of orbit between Sunday, September 22 and Monday, September 23, 2052,[1] with amagnitude of 0.9734. Asolar eclipse occurs when theMoon passes betweenEarth and theSun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon'sapparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like anannulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide. Occurring about 5.9 days beforeapogee (on September 28, 2052, at 20:25 UTC), the Moon's apparent diameter will be smaller.[2]
The path of annularity will be visible from parts of southernIndonesia,East Timor, the northern tip ofQueensland,Australia, andNew Caledonia. A partial solar eclipse will also be visible for parts ofAustralia,Indonesia, thePhilippines,Oceania, andAntarctica.
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 | 2052 September 22 at 20:49:51.5 UTC |
| First Umbral External Contact | 2052 September 22 at 21:56:15.3 UTC |
| First Central Line | 2052 September 22 at 21:57:42.0 UTC |
| First Umbral Internal Contact | 2052 September 22 at 21:59:08.9 UTC |
| Ecliptic Conjunction | 2052 September 22 at 23:34:05.9 UTC |
| Greatest Eclipse | 2052 September 22 at 23:39:09.7 UTC |
| Equatorial Conjunction | 2052 September 22 at 23:55:26.1 UTC |
| Greatest Duration | 2052 September 23 at 00:05:29.0 UTC |
| Last Umbral Internal Contact | 2052 September 23 at 01:18:56.2 UTC |
| Last Central Line | 2052 September 23 at 01:20:26.2 UTC |
| Last Umbral External Contact | 2052 September 23 at 01:21:56.0 UTC |
| Last Penumbral External Contact | 2052 September 23 at 02:28:26.7 UTC |
| Parameter | Value |
|---|---|
| Eclipse Magnitude | 0.97338 |
| Eclipse Obscuration | 0.94747 |
| Gamma | −0.44804 |
| Sun Right Ascension | 12h02m27.0s |
| Sun Declination | -00°15'55.5" |
| Sun Semi-Diameter | 15'56.2" |
| Sun Equatorial Horizontal Parallax | 08.8" |
| Moon Right Ascension | 12h01m56.4s |
| Moon Declination | -00°39'49.3" |
| Moon Semi-Diameter | 15'17.9" |
| Moon Equatorial Horizontal Parallax | 0°56'08.8" |
| ΔT | 85.7 s |
This eclipse is part of aneclipse 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 afortnight.
| September 22 Ascending node (new moon) | October 8 Descending node (full moon) |
|---|---|
|  |
| Annular solar eclipse Solar Saros 135 | Partial lunar eclipse Lunar Saros 147 |
This eclipse is a member of asemester series. An eclipse in a semester series of solar eclipses repeats approximately every 177 days and 4 hours (a semester) at alternatingnodes of the Moon's orbit.[4]
The partial solar eclipse onAugust 3, 2054 occurs in the next lunar year eclipse set.
| Solar eclipse series sets from 2051 to 2054 | ||||||
|---|---|---|---|---|---|---|
| Descending node | Ascending node | |||||
| Saros | Map | Gamma | Saros | Map | Gamma | |
| 120 | April 11, 2051 Partial | 1.0169 | 125 | October 4, 2051 Partial | −1.2094 | |
| 130 | March 30, 2052 Total | 0.3238 | 135 | September 22, 2052 Annular | −0.448 | |
| 140 | March 20, 2053 Annular | −0.4089 | 145 | September 12, 2053 Total | 0.314 | |
| 150 | March 9, 2054 Partial | −1.1711 | 155 | September 2, 2054 Partial | 1.0215 | |
This eclipse is a part ofSaros series 135, repeating every 18 years, 11 days, and containing 71 events. The series started with a partial solar eclipse on July 5, 1331. It contains annular eclipses from October 21, 1511 through February 24, 2305; hybrid eclipses on March 8, 2323 and March 18, 2341; and total eclipses from March 29, 2359 through May 22, 2449. The series ends at member 71 as a partial eclipse on August 17, 2593. Its eclipses are tabulated in three columns; every third eclipse in the same column is oneexeligmos apart, so they all cast shadows over approximately the same parts of the Earth.
The longest duration of annularity was produced by member 16 at 10 minutes, 41 seconds on December 24, 1601, and the longest duration of totality will be produced by member 62 at 2 minutes, 27 seconds on May 12, 2431. All eclipses in this series occur at the Moon’sascending node of orbit.[5]
| Series members 28–49 occur between 1801 and 2200: | ||
|---|---|---|
| 28 | 29 | 30 |
 May 5, 1818 |  May 15, 1836 |  May 26, 1854 |
| 31 | 32 | 33 |
 June 6, 1872 |  June 17, 1890 |  June 28, 1908 |
| 34 | 35 | 36 |
 July 9, 1926 |  July 20, 1944 |  July 31, 1962 |
| 37 | 38 | 39 |
 August 10, 1980 |  August 22, 1998 |  September 1, 2016 |
| 40 | 42 | 42 |
 September 12, 2034 | September 22, 2052 |  October 4, 2070 |
| 43 | 44 | 45 |
 October 14, 2088 |  October 26, 2106 |  November 6, 2124 |
| 46 | 47 | 48 |
 November 17, 2142 |  November 27, 2160 |  December 9, 2178 |
| 49 | ||
 December 19, 2196 | ||
Themetonic 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 | ||||
This eclipse is a part of atritos cycle, repeating at alternating nodes every 135synodic months (≈ 3986.63 days, or 11 years minus 1 month). Their appearance and longitude are irregular due to a lack of synchronization with theanomalistic 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 | ||||
|---|---|---|---|---|
 September 8, 1801 (Saros 112) |  August 7, 1812 (Saros 113) |  July 8, 1823 (Saros 114) |  June 7, 1834 (Saros 115) |  May 6, 1845 (Saros 116) |
 April 5, 1856 (Saros 117) |  March 6, 1867 (Saros 118) |  February 2, 1878 (Saros 119) |  January 1, 1889 (Saros 120) |  December 3, 1899 (Saros 121) |
 November 2, 1910 (Saros 122) |  October 1, 1921 (Saros 123) |  August 31, 1932 (Saros 124) |  August 1, 1943 (Saros 125) |  June 30, 1954 (Saros 126) |
 May 30, 1965 (Saros 127) |  April 29, 1976 (Saros 128) |  March 29, 1987 (Saros 129) |  February 26, 1998 (Saros 130) |  January 26, 2009 (Saros 131) |
 December 26, 2019 (Saros 132) |  November 25, 2030 (Saros 133) |  October 25, 2041 (Saros 134) | September 22, 2052 (Saros 135) |  August 24, 2063 (Saros 136) |
 July 24, 2074 (Saros 137) |  June 22, 2085 (Saros 138) |  May 22, 2096 (Saros 139) |  April 23, 2107 (Saros 140) |  March 22, 2118 (Saros 141) |
 February 18, 2129 (Saros 142) |  January 20, 2140 (Saros 143) |  December 19, 2150 (Saros 144) |  November 17, 2161 (Saros 145) |  October 17, 2172 (Saros 146) |
 September 16, 2183 (Saros 147) |  August 16, 2194 (Saros 148) | |||
This eclipse is a part of the long periodinex cycle, repeating at alternating nodes, every 358synodic months (≈ 10,571.95 days, or 29 years minus 20 days). Their appearance and longitude are irregular due to a lack of synchronization with theanomalistic 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 4, 1821 (Saros 127) |  February 12, 1850 (Saros 128) |  January 22, 1879 (Saros 129) |
 January 3, 1908 (Saros 130) |  December 13, 1936 (Saros 131) |  November 23, 1965 (Saros 132) |
 November 3, 1994 (Saros 133) |  October 14, 2023 (Saros 134) | September 22, 2052 (Saros 135) |
 September 3, 2081 (Saros 136) |  August 15, 2110 (Saros 137) |  July 25, 2139 (Saros 138) |
 July 5, 2168 (Saros 139) |  June 15, 2197 (Saros 140) | |
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