| Partial eclipse | |
 Map | |
| Gamma | 1.4388 |
|---|---|
| Magnitude | 0.2015 |
| Maximum eclipse | |
| Coordinates | 64°18′N71°42′W / 64.3°N 71.7°W /64.3; -71.7 |
| Times (UTC) | |
| Greatest eclipse | 2:44:14 |
| References | |
| Saros | 116 (69 of 70) |
| Catalog # (SE5000) | 9406 |
A partialsolar eclipse occurred at the Moon'sdescending node of orbit on Saturday, July 11, 1953,[1] with amagnitude of 0.2015. Asolar eclipse occurs when theMoon passes betweenEarth and theSun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. A partial solar eclipse occurs in the polar regions of the Earth when the center of the Moon's shadow misses the Earth.
A partial eclipse was visible for parts ofCanada,Greenland, and thePacific Northwest.
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 | 1953 July 11 at 01:37:53.9 UTC |
| Equatorial Conjunction | 1953 July 11 at 02:05:36.4 UTC |
| Ecliptic Conjunction | 1953 July 11 at 02:28:37.4 UTC |
| Greatest Eclipse | 1953 July 11 at 02:44:14.2 UTC |
| Last Penumbral External Contact | 1953 July 11 at 03:50:55.3 UTC |
| Parameter | Value |
|---|---|
| Eclipse Magnitude | 0.20149 |
| Eclipse Obscuration | 0.10431 |
| Gamma | 1.43882 |
| Sun Right Ascension | 07h20m09.8s |
| Sun Declination | +22°10'04.8" |
| Sun Semi-Diameter | 15'43.9" |
| Sun Equatorial Horizontal Parallax | 08.7" |
| Moon Right Ascension | 07h21m30.2s |
| Moon Declination | +23°28'09.7" |
| Moon Semi-Diameter | 15'14.1" |
| Moon Equatorial Horizontal Parallax | 0°55'54.9" |
| ΔT | 30.5 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.
| July 11 Descending node (new moon) | July 26 Ascending node (full moon) | August 9 Descending node (new moon) |
|---|---|---|
|  |  |
| Partial solar eclipse Solar Saros 116 | Total lunar eclipse Lunar Saros 128 | Partial solar eclipse Solar Saros 154 |
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 onFebruary 14, 1953 andAugust 9, 1953 occur in the previous lunar year eclipse set.
| Solar eclipse series sets from 1953 to 1956 | ||||||
|---|---|---|---|---|---|---|
| Descending node | Ascending node | |||||
| Saros | Map | Gamma | Saros | Map | Gamma | |
| 116 | July 11, 1953 Partial | 1.4388 | 121 | January 5, 1954 Annular | −0.9296 | |
| 126 | June 30, 1954 Total | 0.6135 | 131 | December 25, 1954 Annular | −0.2576 | |
| 136 | June 20, 1955 Total | −0.1528 | 141 | December 14, 1955 Annular | 0.4266 | |
| 146 | June 8, 1956 Total | −0.8934 | 151 | December 2, 1956 Partial | 1.0923 | |
This eclipse is a part ofSaros series 116, repeating every 18 years, 11 days, and containing 70 events. The series started with a partial solar eclipse on June 23, 727 AD. It contains annular eclipses from October 10, 907 AD through May 6, 1845. There are no hybrid or total eclipses in this set. The series ends at member 70 as a partial eclipse onJuly 22, 1971. 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 51 at 12 minutes, 2 seconds on December 25, 1628. All eclipses in this series occur at the Moon’sdescending node of orbit.[4]
| Series members 61–70 occur between 1801 and 1971: | ||
|---|---|---|
| 61 | 62 | 63 |
 April 14, 1809 |  April 26, 1827 |  May 6, 1845 |
| 64 | 65 | 66 |
 May 17, 1863 |  May 27, 1881 |  June 8, 1899 |
| 67 | 68 | 69 |
 June 19, 1917 |  June 30, 1935 | July 11, 1953 |
| 70 | ||
 July 22, 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 1866 and 2200 | ||||
|---|---|---|---|---|
 March 16, 1866 (Saros 108) |  December 13, 1898 (Saros 111) | |||
 September 12, 1931 (Saros 114) |  August 12, 1942 (Saros 115) | July 11, 1953 (Saros 116) |  June 10, 1964 (Saros 117) | |
 May 11, 1975 (Saros 118) |  April 9, 1986 (Saros 119) |  March 9, 1997 (Saros 120) |  February 7, 2008 (Saros 121) |  January 6, 2019 (Saros 122) |
 December 5, 2029 (Saros 123) |  November 4, 2040 (Saros 124) |  October 4, 2051 (Saros 125) |  September 3, 2062 (Saros 126) |  August 3, 2073 (Saros 127) |
 July 3, 2084 (Saros 128) |  June 2, 2095 (Saros 129) |  May 3, 2106 (Saros 130) |  April 2, 2117 (Saros 131) |  March 1, 2128 (Saros 132) |
 January 30, 2139 (Saros 133) |  December 30, 2149 (Saros 134) |  November 27, 2160 (Saros 135) |  October 29, 2171 (Saros 136) |  September 27, 2182 (Saros 137) |
 August 26, 2193 (Saros 138) | ||||
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.
| 21 eclipse events between July 11, 1953 and July 11, 2029 | ||||
|---|---|---|---|---|
| July 10–11 | April 29–30 | February 15–16 | December 4 | September 21–23 |
| 116 | 118 | 120 | 122 | 124 |
July 11, 1953 |  April 30, 1957 |  February 15, 1961 |  December 4, 1964 |  September 22, 1968 |
| 126 | 128 | 130 | 132 | 134 |
 July 10, 1972 |  April 29, 1976 |  February 16, 1980 |  December 4, 1983 |  September 23, 1987 |
| 136 | 138 | 140 | 142 | 144 |
 July 11, 1991 |  April 29, 1995 |  February 16, 1999 |  December 4, 2002 |  September 22, 2006 |
| 146 | 148 | 150 | 152 | 154 |
 July 11, 2010 |  April 29, 2014 |  February 15, 2018 |  December 4, 2021 |  September 21, 2025 |
| 156 | ||||
 July 11, 2029 | ||||
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 | ||
|---|---|---|
 October 19, 1808 (Saros 111) | ||
 August 20, 1895 (Saros 114) |  July 31, 1924 (Saros 115) | July 11, 1953 (Saros 116) |
 June 21, 1982 (Saros 117) |  June 1, 2011 (Saros 118) |  May 11, 2040 (Saros 119) |
 April 21, 2069 (Saros 120) |  April 1, 2098 (Saros 121) |  March 13, 2127 (Saros 122) |
 February 21, 2156 (Saros 123) |  January 31, 2185 (Saros 124) | |
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