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Solar eclipse of July 11, 1953

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Solar eclipse of July 11, 1953
Map
Type of eclipse
NaturePartial
Gamma1.4388
Magnitude0.2015
Maximum eclipse
Coordinates64°18′N 71°42′W / 64.3°N 71.7°W / 64.3; -71.7
Times (UTC)
Greatest eclipse2:44:14
References
Saros116 (69 of 70)
Catalog # (SE5000)9406

A partial solar eclipse occurred at the Moon's descending node of orbit on Saturday, July 11, 1953,[1] with a magnitude of 0.2015. 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 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 of Canada, Greenland, and the Pacific Northwest.

Eclipse details

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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]

July 11, 1953 Solar Eclipse Times
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
July 11, 1953 Solar Eclipse Parameters
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

Eclipse season

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This eclipse is part of an eclipse 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 a fortnight.

Eclipse season of July–August 1953
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
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Eclipses in 1953

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Metonic

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Tzolkinex

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Half-Saros

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Tritos

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Solar Saros 116

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Inex

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Triad

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Solar eclipses of 1953–1956

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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.[3]

The partial solar eclipses on February 14, 1953 and August 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

Saros 116

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This eclipse is a part of Saros 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 on July 22, 1971. Its eclipses are tabulated in three columns; every third eclipse in the same column is one exeligmos 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’s descending node of orbit.[4]

Tritos series

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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 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)

Metonic series

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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 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

Inex series

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This eclipse is a part of the long period inex cycle, repeating at alternating nodes, every 358 synodic months (≈ 10,571.95 days, or 29 years minus 20 days). Their appearance and longitude are irregular due to a lack of synchronization with the anomalistic 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)

References

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  1. ^ "July 11, 1953 Partial Solar Eclipse". timeanddate. Retrieved 5 August 2024.
  2. ^ "Partial Solar Eclipse of 1953 Jul 11". EclipseWise.com. Retrieved 5 August 2024.
  3. ^ van Gent, R.H. "Solar- and Lunar-Eclipse Predictions from Antiquity to the Present". A Catalogue of Eclipse Cycles. Utrecht University. Retrieved 6 October 2018.
  4. ^ "NASA - Catalog of Solar Eclipses of Saros 116". eclipse.gsfc.nasa.gov.
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