| Annular eclipse | |
 Map | |
| Gamma | 0.3514 |
|---|---|
| Magnitude | 0.9649 |
| Maximum eclipse | |
| Duration | 234 s (3 min 54 s) |
| Coordinates | 4°30′N3°06′E / 4.5°N 3.1°E /4.5; 3.1 |
| Max. width of band | 134 km (83 mi) |
| Times (UTC) | |
| Greatest eclipse | 12:05:10 |
| References | |
| Saros | 132 (41 of 71) |
| Catalog # (SE5000) | 9350 |
An annularsolar eclipse occurred at the Moon'sdescending node of orbit on Friday, November 1, 1929,[1] with amagnitude of 0.9649. A solar 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 6 days beforeapogee (on November 7, 1929, at 11:00 UTC), the Moon's apparent diameter was smaller.[2]
Annularity was visible fromSpanish Sahara (today'sWest Sahara),French West Africa (parts now belonging toMauritania,Mali,Burkina Faso, and southwestern tip ofBenin),British Gold Coast (today'sGhana),French Togoland (today'sTogo) including capitalLomé,Portuguese São Tomé and Príncipe (today'sSão Tomé and Príncipe),French Equatorial Africa (parts now belonging toGabon andR. Congo) including capitalBrazzaville,Belgian Congo (today'sDR Congo) including capitalLéopoldville,Northern Rhodesia (today'sZambia),British Tanganyika (now belonging toTanzania) including capitalDar es Salaam, and British Seychelles (today'sSeychelles) including capitalVictoria. A partial eclipse was visible for most ofAfrica,Europe, and theMiddle East.
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 | 1929 November 1 at 09:12:50.4 UTC |
| First Umbral External Contact | 1929 November 1 at 10:17:25.7 UTC |
| First Central Line | 1929 November 1 at 10:19:08.2 UTC |
| First Umbral Internal Contact | 1929 November 1 at 10:20:50.9 UTC |
| First Penumbral Internal Contact | 1929 November 1 at 11:35:47.0 UTC |
| Equatorial Conjunction | 1929 November 1 at 11:47:03.1 UTC |
| Ecliptic Conjunction | 1929 November 1 at 12:01:11.0 UTC |
| Greatest Eclipse | 1929 November 1 at 12:05:09.8 UTC |
| Last Penumbral Internal Contact | 1929 November 1 at 12:34:57.3 UTC |
| Greatest Duration | 1929 November 1 at 12:41:12.0 UTC |
| Last Umbral Internal Contact | 1929 November 1 at 13:49:37.9 UTC |
| Last Central Line | 1929 November 1 at 13:51:23.5 UTC |
| Last Umbral External Contact | 1929 November 1 at 13:53:08.8 UTC |
| Last Penumbral External Contact | 1929 November 1 at 14:57:43.0 UTC |
| Parameter | Value |
|---|---|
| Eclipse Magnitude | 0.96489 |
| Eclipse Obscuration | 0.93100 |
| Gamma | 0.35138 |
| Sun Right Ascension | 14h24m49.9s |
| Sun Declination | -14°22'20.5" |
| Sun Semi-Diameter | 16'07.1" |
| Sun Equatorial Horizontal Parallax | 08.9" |
| Moon Right Ascension | 14h25m23.5s |
| Moon Declination | -14°04'23.5" |
| Moon Semi-Diameter | 15'19.6" |
| Moon Equatorial Horizontal Parallax | 0°56'14.9" |
| ΔT | 24.0 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.
| November 1 Descending node (new moon) | November 17 Ascending node (full moon) |
|---|---|
|  |
| Annular solar eclipse Solar Saros 132 | Penumbral lunar eclipse Lunar Saros 144 |
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 onJune 17, 1928 occurs in the previous lunar year eclipse set, and the partial solar eclipse onSeptember 12, 1931 occurs in the next lunar year eclipse set.
| Solar eclipse series sets from 1928 to 1931 | ||||||
|---|---|---|---|---|---|---|
| Ascending node | Descending node | |||||
| Saros | Map | Gamma | Saros | Map | Gamma | |
| 117 | May 19, 1928 Total (non-central) | 1.0048 | 122 | November 12, 1928 Partial | 1.0861 | |
| 127 | May 9, 1929 Total | −0.2887 | 132 | November 1, 1929 Annular | 0.3514 | |
| 137 | April 28, 1930 Hybrid | 0.473 | 142 | October 21, 1930 Total | −0.3804 | |
| 147 | April 18, 1931 Partial | 1.2643 | 152 | October 11, 1931 Partial | −1.0607 | |
This eclipse is a part ofSaros series 132, repeating every 18 years, 11 days, and containing 71 events. The series started with a partial solar eclipse on August 13, 1208. It contains annular eclipses from March 17, 1569 through March 12, 2146; hybrid eclipses on March 23, 2164 and April 3, 2182; 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. 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 25 at 6 minutes, 56 seconds on May 9, 1641, and the longest duration of totality will be produced by member 61 at 2 minutes, 14 seconds on June 8, 2290. All eclipses in this series occur at the Moon’sdescending node of orbit.[5]
| Series members 34–56 occur between 1801 and 2200: | |||
|---|---|---|---|
| 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 | 51 | |
 January 27, 2074 |  February 7, 2092 |  February 18, 2110 | |
| 52 | 53 | 54 | |
 March 1, 2128 |  March 12, 2146 |  March 23, 2164 | |
| 55 | 56 | ||
 April 3, 2182 |  April 14, 2200 | ||
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 descending node.
| 22 eclipse events between March 27, 1884 and August 20, 1971 | ||||
|---|---|---|---|---|
| March 27–29 | January 14 | November 1–2 | August 20–21 | June 8 |
| 108 | 110 | 112 | 114 | 116 |
 March 27, 1884 |  August 20, 1895 |  June 8, 1899 | ||
| 118 | 120 | 122 | 124 | 126 |
 March 29, 1903 |  January 14, 1907 |  November 2, 1910 |  August 21, 1914 |  June 8, 1918 |
| 128 | 130 | 132 | 134 | 136 |
 March 28, 1922 |  January 14, 1926 | November 1, 1929 |  August 21, 1933 |  June 8, 1937 |
| 138 | 140 | 142 | 144 | 146 |
 March 27, 1941 |  January 14, 1945 |  November 1, 1948 |  August 20, 1952 |  June 8, 1956 |
| 148 | 150 | 152 | 154 | |
 March 27, 1960 |  January 14, 1964 |  November 2, 1967 |  August 20, 1971 | |
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 | ||||
|---|---|---|---|---|
 October 9, 1809 (Saros 121) |  September 7, 1820 (Saros 122) |  August 7, 1831 (Saros 123) |  July 8, 1842 (Saros 124) |  June 6, 1853 (Saros 125) |
 May 6, 1864 (Saros 126) |  April 6, 1875 (Saros 127) |  March 5, 1886 (Saros 128) |  February 1, 1897 (Saros 129) |  January 3, 1908 (Saros 130) |
 December 3, 1918 (Saros 131) | November 1, 1929 (Saros 132) |  October 1, 1940 (Saros 133) |  September 1, 1951 (Saros 134) |  July 31, 1962 (Saros 135) |
 June 30, 1973 (Saros 136) |  May 30, 1984 (Saros 137) |  April 29, 1995 (Saros 138) |  March 29, 2006 (Saros 139) |  February 26, 2017 (Saros 140) |
 January 26, 2028 (Saros 141) |  December 26, 2038 (Saros 142) |  November 25, 2049 (Saros 143) |  October 24, 2060 (Saros 144) |  September 23, 2071 (Saros 145) |
 August 24, 2082 (Saros 146) |  July 23, 2093 (Saros 147) |  June 22, 2104 (Saros 148) |  May 24, 2115 (Saros 149) |  April 22, 2126 (Saros 150) |
 March 21, 2137 (Saros 151) |  February 19, 2148 (Saros 152) |  January 19, 2159 (Saros 153) |  December 18, 2169 (Saros 154) |  November 17, 2180 (Saros 155) |
 October 18, 2191 (Saros 156) | ||||
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 | ||
|---|---|---|
 January 21, 1814 (Saros 128) |  December 31, 1842 (Saros 129) |  December 12, 1871 (Saros 130) |
 November 22, 1900 (Saros 131) | November 1, 1929 (Saros 132) |  October 12, 1958 (Saros 133) |
 September 23, 1987 (Saros 134) |  September 1, 2016 (Saros 135) |  August 12, 2045 (Saros 136) |
 July 24, 2074 (Saros 137) |  July 4, 2103 (Saros 138) |  June 13, 2132 (Saros 139) |
 May 25, 2161 (Saros 140) |  May 4, 2190 (Saros 141) | |
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