| Solar eclipse of September 23, 2090 | |
|---|---|
 Map | |
| Type of eclipse | |
| Nature | Total |
| Gamma | 0.9157 |
| Magnitude | 1.0562 |
| Maximum eclipse | |
| Duration | 216 s (3 min 36 s) |
| Coordinates | 60°42′N 40°30′W / 60.7°N 40.5°W |
| Max. width of band | 463 km (288 mi) |
| Times (UTC) | |
| Greatest eclipse | 16:56:36 |
| References | |
| Saros | 155 (10 of 71) |
| Catalog # (SE5000) | 9711 |
A total solar eclipse will occur on September 23, 2090. 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. This solar eclipse will be the first total solar eclipse visible from Great Britain since August 11, 1999, and the first visible from Ireland since May 22, 1724. The totality will be visible in southern Greenland, Valentia, West Cork, Poole, Newquay, Plymouth, Southampton, Isle of Wight, northern France (including Paris and Rennes) and south Belgium and a partially eclipsed sun will be visible in Birmingham, London, Exeter, Cardiff, Belfast, Dublin, Weston Super Mare, Bristol and Oxford.
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.[1]
| 120 | May 2, 2087 Partial |
125 | October 26, 2087 Partial |
| 130 | April 21, 2088 Total |
135 | October 14, 2088 Annular |
| 140 | April 10, 2089 Annular |
145 | October 4, 2089 Total |
| 150 | March 31, 2090 Partial |
155 | September 23, 2090 Total |
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 1901 and 2100 | |||
|---|---|---|---|
 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) |
|
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, progressing from south to north 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 | ||||
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