| Solar eclipse of November 12, 1947 | |
|---|---|
 Map | |
| Type of eclipse | |
| Nature | Annular |
| Gamma | 0.3743 |
| Magnitude | 0.965 |
| Maximum eclipse | |
| Duration | 239 sec (3 m 59 s) |
| Coordinates | 3°00′N 117°24′W / 3°N 117.4°W |
| Max. width of band | 135 km (84 mi) |
| Times (UTC) | |
| Greatest eclipse | 20:05:37 |
| References | |
| Saros | 132 (42 of 71) |
| Catalog # (SE5000) | 9393 |
An annular solar eclipse occurred on November 12, 1947. 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. Annularity was visible from the Pacific Ocean, Peru, Ecuador, Colombia and Brazil.
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]
| Ascending node | Descending node | |||
|---|---|---|---|---|
| 117 | 1946 May 30 Partial |
122 | 1946 November 23 Partial | |
| 127 | 1947 May 20 Total |
132 | 1947 November 12 Annular | |
| 137 | 1948 May 9 Annular |
142 | 1948 November 1 Total | |
| 147 | 1949 April 28 Partial |
152 | 1949 October 21 Partial | |
This eclipse is a part of Saros cycle 132, repeating every 18 years, 11 days, containing 71 events. The series started with partial solar eclipse on August 13, 1208. It contains annular eclipses from March 17, 1569 through March 12, 2146, hybrid on March 23, 2164 and April 3, 2183 and total eclipses from April 14, 2200 through June 19, 2308. The series ends at member 71 as a partial eclipse on September 25, 2470. The longest duration of annular was 6 minutes, 56 seconds on May 9, 1641, and totality will be 2 minutes, 14 seconds on June 8, 2290. All eclipses in this series occurs at the Moon’s descending node.
| Series members 28–50 occur between 1690 and 2100: | ||
|---|---|---|
| 28 | 29 | 30 |
 June 11, 1695 |
 June 22, 1713 |
 July 4, 1731 |
| 31 | 32 | 33 |
 July 14, 1749 |
 July 25, 1767 |
 August 5, 1785 |
| 34 | 35 | 36 |
 August 17, 1803 |
 August 27, 1821 |
 September 7, 1839 |
| 37 | 38 | 39 |
 September 18, 1857 |
 September 29, 1875 |
 October 9, 1893 |
| 40 | 41 | 42 |
 October 22, 1911 |
 November 1, 1929 |
November 12, 1947 |
| 43 | 44 | 45 |
 November 23, 1965 |
 December 4, 1983 |
 December 14, 2001 |
| 46 | 47 | 48 |
 December 26, 2019 |
 January 5, 2038 |
 January 16, 2056 |
| 49 | 50 | |
 January 27, 2074 |
 February 7, 2092 | |
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 2100 | |||
|---|---|---|---|
 December 21, 1805 (Saros 119) |
 November 19, 1816 (Saros 120) |
 October 20, 1827 (Saros 121) | |
 September 18, 1838 (Saros 122) |
 August 18, 1849 (Saros 123) |
 July 18, 1860 (Saros 124) | |
 June 18, 1871 (Saros 125) |
 May 17, 1882 (Saros 126) |
 April 16, 1893 (Saros 127) | |
 March 17, 1904 (Saros 128) |
 February 14, 1915 (Saros 129) |
 January 14, 1926 (Saros 130) | |
 December 13, 1936 (Saros 131) |
November 12, 1947 (Saros 132) |
 October 12, 1958 (Saros 133) | |
 September 11, 1969 (Saros 134) |
 August 10, 1980 (Saros 135) |
 July 11, 1991 (Saros 136) | |
 June 10, 2002 (Saros 137) |
 May 10, 2013 (Saros 138) |
 April 8, 2024 (Saros 139) | |
 March 9, 2035 (Saros 140) |
 February 5, 2046 (Saros 141) |
 January 5, 2057 (Saros 142) | |
 December 6, 2067 (Saros 143) |
 November 4, 2078 (Saros 144) |
 October 4, 2089 (Saros 145) | |
 September 4, 2100 (Saros 146) |
|||
In the 22nd century:
In the 23rd century:
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).
| 22 eclipse events, progressing from north to south between April 8, 1902 and August 31, 1989: | ||||
|---|---|---|---|---|
| April 7–8 | January 24–25 | November 12 | August 31-September 1 | June 19–20 |
| 108 | 114 | 116 | ||
 April 8, 1902 |
 August 31, 1913 |
 June 19, 1917 | ||
| 118 | 120 | 122 | 124 | 126 |
 April 8, 1921 |
 January 24, 1925 |
 November 12, 1928 |
 August 31, 1932 |
 June 19, 1936 |
| 128 | 130 | 132 | 134 | 136 |
 April 7, 1940 |
 January 25, 1944 |
November 12, 1947 |
 September 1, 1951 |
 June 20, 1955 |
| 138 | 140 | 142 | 144 | 146 |
 April 8, 1959 |
 January 25, 1963 |
 November 12, 1966 |
 August 31, 1970 |
 June 20, 1974 |
| 148 | 150 | 152 | 154 | |
 April 7, 1978 |
 January 25, 1982 |
 November 12, 1985 |
 August 31, 1989 | |
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