Solar eclipse of August 20, 1952

Last updated
Solar eclipse of August 20, 1952
SE1952Aug20A.png
Map
Type of eclipse
NatureAnnular
Gamma −0.6102
Magnitude 0.942
Maximum eclipse
Duration400 s (6 min 40 s)
Coordinates 21°42′S64°06′W / 21.7°S 64.1°W / -21.7; -64.1
Max. width of band264 km (164 mi)
Times (UTC)
Greatest eclipse15:13:35
References
Saros 144 (13 of 70)
Catalog # (SE5000) 9403

An annular solar eclipse occurred at the Moon's descending node of orbit on Wednesday, August 20, 1952, [1] with a magnitude of 0.942. 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. Occurring 1.2 days after apogee (on August 19, 1952, at 12:00 UTC), the Moon's apparent diameter was smaller. [2]

Contents

Annularity was visible from Peru including the capital city Lima, northeastern Chile, Bolivia including the constitutional capital Sucre and seat of government La Paz, Argentina, Paraguay, southern Brazil and Uruguay. A partial eclipse was visible for most of Central America, the Caribbean, and South America.

Eclipse details

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]

August 20, 1952 Solar Eclipse Times
EventTime (UTC)
First Penumbral External Contact1952 August 20 at 12:22:27.8 UTC
First Umbral External Contact1952 August 20 at 13:36:36.8 UTC
First Central Line1952 August 20 at 13:39:39.7 UTC
First Umbral Internal Contact1952 August 20 at 13:42:44.8 UTC
Greatest Duration1952 August 20 at 15:00:09.1 UTC
Greatest Eclipse1952 August 20 at 15:13:35.2 UTC
Ecliptic Conjunction1952 August 20 at 15:20:50.2 UTC
Equatorial Conjunction1952 August 20 at 15:48:35.8 UTC
Last Umbral Internal Contact1952 August 20 at 16:44:03.7 UTC
Last Central Line1952 August 20 at 16:47:08.7 UTC
Last Umbral External Contact1952 August 20 at 16:50:11.3 UTC
Last Penumbral External Contact1952 August 20 at 18:04:27.3 UTC
August 20, 1952 Solar Eclipse Parameters
ParameterValue
Eclipse Magnitude0.94203
Eclipse Obscuration0.88742
Gamma−0.61023
Sun Right Ascension09h58m50.8s
Sun Declination+12°20'20.6"
Sun Semi-Diameter15'48.6"
Sun Equatorial Horizontal Parallax08.7"
Moon Right Ascension09h57m52.3s
Moon Declination+11°50'44.7"
Moon Semi-Diameter14'43.1"
Moon Equatorial Horizontal Parallax0°54'01.0"
ΔT30.2 s

Eclipse season

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 August 1952
August 5
Ascending node (full moon)		 August 20
Descending node (new moon)
Lunar eclipse chart close-1952Aug05.png SE1952Aug20A.png
Partial lunar eclipse
Lunar Saros 118		 Annular solar eclipse
Solar Saros 144

Eclipses in 1952

Metonic

Tzolkinex

Half-Saros

Tritos

Solar Saros 144

Inex

Triad

Solar eclipses of 1950–1953

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. [4]

The partial solar eclipse on July 11, 1953 occurs in the next lunar year eclipse set.

Solar eclipse series sets from 1950 to 1953
Ascending node Descending node
SarosMapGammaSarosMapGamma
119 March 18, 1950
SE1950Mar18A.png
Annular (non-central)		0.9988124 September 12, 1950
SE1950Sep12T.png
Total		0.8903
129 March 7, 1951
SE1951Mar07A.png
Annular		−0.242134 September 1, 1951
SE1951Sep01A.png
Annular		0.1557
139 February 25, 1952
SE1952Feb25T.png
Total		0.4697144 August 20, 1952
SE1952Aug20A.png
Annular		−0.6102
149 February 14, 1953
SE1953Feb14P.png
Partial		1.1331154 August 9, 1953
SE1953Aug09P.png
Partial		−1.344

Saros 144

This eclipse is a part of Saros series 144, repeating every 18 years, 11 days, and containing 70 events. The series started with a partial solar eclipse on April 11, 1736. It contains annular eclipses from July 7, 1880 through August 27, 2565. There are no hybrid or total eclipses in this set. The series ends at member 70 as a partial eclipse on May 5, 2980. 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 will be produced by member 51 at 9 minutes, 52 seconds on December 29, 2168. All eclipses in this series occur at the Moon’s descending node of orbit. [5]

Series members 5–26 occur between 1801 and 2200:
567
SE1808May25P.png
May 25, 1808		 SE1826Jun05P.png
June 5, 1826		 SE1844Jun16P.png
June 16, 1844
8910
SE1862Jun27P.png
June 27, 1862		 SE1880Jul07A.png
July 7, 1880		 SE1898Jul18A.png
July 18, 1898
111213
SE1916Jul30A.png
July 30, 1916 		SE1934Aug10A.png
August 10, 1934 		SE1952Aug20A.png
August 20, 1952
141516
SE1970Aug31A.png
August 31, 1970 		SE1988Sep11A.png
September 11, 1988 		SE2006Sep22A.png
September 22, 2006
171819
SE2024Oct02A.png
October 2, 2024 		SE2042Oct14A.png
October 14, 2042 		SE2060Oct24A.png
October 24, 2060
202122
SE2078Nov04A.png
November 4, 2078 		SE2096Nov15A.png
November 15, 2096 		SE2114Nov27A.png
November 27, 2114
232425
SE2132Dec07A.png
December 7, 2132		 SE2150Dec19A.png
December 19, 2150		 SE2168Dec29A.png
December 29, 2168
26
SE2187Jan09A.png
January 9, 2187

Metonic series

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.

22 eclipse events between March 27, 1884 and August 20, 1971
March 27–29January 14November 1–2August 20–21June 8
108110112114116
SE1884Mar27P.gif
March 27, 1884		 SE1895Aug20P.gif
August 20, 1895		 SE1899Jun08P.gif
June 8, 1899
118120122124126
SE1903Mar29A.png
March 29, 1903 		SE1907Jan14T.png
January 14, 1907 		SE1910Nov02P.png
November 2, 1910 		SE1914Aug21T.png
August 21, 1914 		SE1918Jun08T.png
June 8, 1918
128130132134136
SE1922Mar28A.png
March 28, 1922 		SE1926Jan14T.png
January 14, 1926 		SE1929Nov01A.png
November 1, 1929 		SE1933Aug21A.png
August 21, 1933 		SE1918Jun08T.png
June 8, 1937
138140142144146
SE1941Mar27A.png
March 27, 1941 		SE1945Jan14A.png
January 14, 1945 		SE1948Nov01T.png
November 1, 1948 		SE1952Aug20A.png
August 20, 1952 		SE1956Jun08T.png
June 8, 1956
148150152154
SE1960Mar27P.png
March 27, 1960 		SE1964Jan14P.png
January 14, 1964 		SE1967Nov02T.png
November 2, 1967 		SE1971Aug20P.png
August 20, 1971

Tritos series

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.

The partial solar eclipses on December 7, 2170 (part of Saros 164) and November 7, 2181 (part of Saros 165) are also a part of this series but are not included in the table below.

Series members between 1801 and 2105
SE1810Sep28A.gif
September 28, 1810
(Saros 131)		 SE1821Aug27A.gif
August 27, 1821
(Saros 132)		 SE1832Jul27T.gif
July 27, 1832
(Saros 133)		 SE1843Jun27H.gif
June 27, 1843
(Saros 134)		 SE1854May26A.png
May 26, 1854
(Saros 135)
SE1865Apr25T.png
April 25, 1865
(Saros 136)		 SE1876Mar25A.gif
March 25, 1876
(Saros 137)		 SE1887Feb22A.png
February 22, 1887
(Saros 138)		 SE1898Jan22T.png
January 22, 1898
(Saros 139)		 SE1908Dec23H.png
December 23, 1908
(Saros 140)
SE1919Nov22A.png
November 22, 1919
(Saros 141)		 SE1930Oct21T.png
October 21, 1930
(Saros 142)		 SE1941Sep21T.png
September 21, 1941
(Saros 143)		 SE1952Aug20A.png
August 20, 1952
(Saros 144)		 SE1963Jul20T.png
July 20, 1963
(Saros 145)
SE1974Jun20T.png
June 20, 1974
(Saros 146)		 SE1985May19P.png
May 19, 1985
(Saros 147)		 SE1996Apr17P.png
April 17, 1996
(Saros 148)		 SE2007Mar19P.png
March 19, 2007
(Saros 149)		 SE2018Feb15P.png
February 15, 2018
(Saros 150)
SE2029Jan14P.png
January 14, 2029
(Saros 151)		 SE2039Dec15T.png
December 15, 2039
(Saros 152)		 SE2050Nov14P.png
November 14, 2050
(Saros 153)		 SE2061Oct13A.png
October 13, 2061
(Saros 154)		 SE2072Sep12T.png
September 12, 2072
(Saros 155)
SE2083Aug13P.png
August 13, 2083
(Saros 156)		 SE2094Jul12P.png
July 12, 2094
(Saros 157)		 Saros158 03van70 SE2105Jun12P.jpg
June 12, 2105
(Saros 158)

Inex series

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
SE1807Nov29H.gif
November 29, 1807
(Saros 139)		 SE1836Nov09T.gif
November 9, 1836
(Saros 140)		 SE1865Oct19A.png
October 19, 1865
(Saros 141)
SE1894Sep29T.gif
September 29, 1894
(Saros 142)		 SE1923Sep10T.png
September 10, 1923
(Saros 143)		 SE1952Aug20A.png
August 20, 1952
(Saros 144)
SE1981Jul31T.png
July 31, 1981
(Saros 145)		 SE2010Jul11T.png
July 11, 2010
(Saros 146)		 SE2039Jun21A.png
June 21, 2039
(Saros 147)
SE2068May31T.png
May 31, 2068
(Saros 148)		 SE2097May11T.png
May 11, 2097
(Saros 149)		 Saros150 23van71 SE2126Apr22A.jpg
April 22, 2126
(Saros 150)
SE2155Apr02A.png
April 2, 2155
(Saros 151)		 Saros152 22van70 SE2184Mar12T.jpg
March 12, 2184
(Saros 152)

Notes

  1. ↑ "August 20, 1952 Annular Solar Eclipse". timeanddate. Retrieved 5 August 2024.
  2. ↑ "Moon Distances for London, United Kingdom, England". timeanddate. Retrieved 5 August 2024.
  3. ↑ "Annular Solar Eclipse of 1952 Aug 20". EclipseWise.com. Retrieved 5 August 2024.
  4. ↑ 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.
  5. ↑ "NASA - Catalog of Solar Eclipses of Saros 144". eclipse.gsfc.nasa.gov.

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References

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