| Partial eclipse | |
 Map | |
| Gamma | −1.2354 |
|---|---|
| Magnitude | 0.5591 |
| Maximum eclipse | |
| Coordinates | 68°12′S43°06′E / 68.2°S 43.1°E /-68.2; 43.1 |
| Times (UTC) | |
| Greatest eclipse | 20:30:08 |
| References | |
| Saros | 150 (14 of 71) |
| Catalog # (SE5000) | 9428 |
A partialsolar eclipse occurred at the Moon'sdescending node of orbit on Tuesday, January 14, 1964,[1] with amagnitude of 0.5591. Asolar eclipse occurs when theMoon passes betweenEarth and theSun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. Partial solar eclipses occur in thepolar regions of the Earth when the center of the Moon's shadow misses the Earth.
This was the first of four partial solar eclipses in 1964, with the others occurring onJune 10,July 9, andDecember 4.
A partial eclipse was visible for parts ofAntarctica and extreme southernSouth America.
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.[2]
| Event | Time (UTC) |
|---|---|
| First Penumbral External Contact | 1964 January 14 at 18:38:52.1 UTC |
| Equatorial Conjunction | 1964 January 14 at 20:19:20.3 UTC |
| Greatest Eclipse | 1964 January 14 at 20:30:08.2 UTC |
| Ecliptic Conjunction | 1964 January 14 at 20:44:03.6 UTC |
| Last Penumbral External Contact | 1964 January 14 at 22:21:24.3 UTC |
| Parameter | Value |
|---|---|
| Eclipse Magnitude | 0.55916 |
| Eclipse Obscuration | 0.44651 |
| Gamma | −1.23541 |
| Sun Right Ascension | 19h42m19.5s |
| Sun Declination | -21°21'43.0" |
| Sun Semi-Diameter | 16'15.6" |
| Sun Equatorial Horizontal Parallax | 08.9" |
| Moon Right Ascension | 19h42m41.8s |
| Moon Declination | -22°29'45.9" |
| Moon Semi-Diameter | 15'05.5" |
| Moon Equatorial Horizontal Parallax | 0°55'23.3" |
| ΔT | 35.1 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.
| December 30 Ascending node (full moon) | January 14 Descending node (new moon) |
|---|---|
 | |
| Total lunar eclipse Lunar Saros 124 | Partial solar eclipse Solar Saros 150 |
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.[3]
The partial solar eclipses onJune 10, 1964 andDecember 4, 1964 occur in the next lunar year eclipse set.
| Solar eclipse series sets from 1961 to 1964 | ||||||
|---|---|---|---|---|---|---|
| Descending node | Ascending node | |||||
| Saros | Map | Gamma | Saros | Map | Gamma | |
120 | February 15, 1961 Total | 0.883 | 125 | August 11, 1961 Annular | −0.8859 | |
| 130 | February 5, 1962 Total | 0.2107 | 135 | July 31, 1962 Annular | −0.113 | |
| 140 | January 25, 1963 Annular | −0.4898 | 145 | July 20, 1963 Total | 0.6571 | |
| 150 | January 14, 1964 Partial | −1.2354 | 155 | July 9, 1964 Partial | 1.3623 | |
This eclipse is a part ofSaros series 150, repeating every 18 years, 11 days, and containing 71 events. The series started with a partial solar eclipse on August 24, 1729. It contains annular eclipses from April 22, 2126 through June 22, 2829. There are no hybrid or total eclipses in this set. The series ends at member 71 as a partial eclipse on September 29, 2991. 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 will be produced by member 45 at 9 minutes, 58 seconds on December 19, 2522. All eclipses in this series occur at the Moon’sdescending node of orbit.[4]
| Series members 5–27 occur between 1801 and 2200: | ||
|---|---|---|
| 5 | 6 | 7 |
 October 7, 1801 |  October 19, 1819 |  October 29, 1837 |
| 8 | 9 | 10 |
 November 9, 1855 |  November 20, 1873 |  December 1, 1891 |
| 11 | 12 | 13 |
 December 12, 1909 |  December 24, 1927 |  January 3, 1946 |
| 14 | 15 | 16 |
January 14, 1964 |  January 25, 1982 |  February 5, 2000 |
| 17 | 18 | 19 |
 February 15, 2018 |  February 27, 2036 |  March 9, 2054 |
| 20 | 21 | 22 |
 March 19, 2072 |  March 31, 2090 |  April 11, 2108 |
| 23 | 24 | 25 |
 April 22, 2126 |  May 3, 2144 |  May 14, 2162 |
| 26 | 27 | |
 May 24, 2180 |  June 4, 2198 | |
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.
The partial solar eclipse on November 4, 2116 (part of Saros 164) is also a part of this series but is not included in the table below.
| Series members between 1801 and 2029 | ||||
|---|---|---|---|---|
 March 24, 1811 (Saros 136) |  February 21, 1822 (Saros 137) |  January 20, 1833 (Saros 138) |  December 21, 1843 (Saros 139) |  November 20, 1854 (Saros 140) |
 October 19, 1865 (Saros 141) |  September 17, 1876 (Saros 142) |  August 19, 1887 (Saros 143) |  July 18, 1898 (Saros 144) |  June 17, 1909 (Saros 145) |
 May 18, 1920 (Saros 146) |  April 18, 1931 (Saros 147) |  March 16, 1942 (Saros 148) |  February 14, 1953 (Saros 149) | January 14, 1964 (Saros 150) |
 December 13, 1974 (Saros 151) |  November 12, 1985 (Saros 152) |  October 12, 1996 (Saros 153) |  September 11, 2007 (Saros 154) |  August 11, 2018 (Saros 155) |
 July 11, 2029 (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 | ||
|---|---|---|
 April 24, 1819 (Saros 145) |  April 3, 1848 (Saros 146) |  March 15, 1877 (Saros 147) |
 February 23, 1906 (Saros 148) |  February 3, 1935 (Saros 149) | January 14, 1964 (Saros 150) |
 December 24, 1992 (Saros 151) |  December 4, 2021 (Saros 152) |  November 14, 2050 (Saros 153) |
 October 24, 2079 (Saros 154) |  October 5, 2108 (Saros 155) |  September 15, 2137 (Saros 156) |
 August 25, 2166 (Saros 157) |  August 5, 2195 (Saros 158) | |
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