Solar eclipse of September 10, 1942

A partial solar eclipse occurred at the Moon's ascending node of orbit on Thursday, September 10, 1942,[1] with a magnitude of 0.523. 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.

Solar eclipse of September 10, 1942
Map
Type of eclipse
NaturePartial
Gamma1.2571
Magnitude0.523
Maximum eclipse
Coordinates71°54′N 50°00′E / 71.9°N 50°E / 71.9; 50
Times (UTC)
Greatest eclipse15:39:32
References
Saros153 (5 of 70)
Catalog # (SE5000)9380

A partial eclipse was visible for parts of northern North America, Europe, and North Africa.

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]

September 10, 1942 Solar Eclipse Times
Event Time (UTC)
First Penumbral External Contact 1942 September 10 at 13:57:28.2 UTC
Equatorial Conjunction 1942 September 10 at 14:55:13.2 UTC
Greatest Eclipse 1942 September 10 at 15:39:32.2 UTC
Ecliptic Conjunction 1942 September 10 at 15:53:06.5 UTC
Last Penumbral External Contact 1942 September 10 at 17:21:52.0 UTC
September 10, 1942 Solar Eclipse Parameters
Parameter Value
Eclipse Magnitude 0.52306
Eclipse Obscuration 0.41298
Gamma 1.25711
Sun Right Ascension 11h13m14.3s
Sun Declination +05°01'18.3"
Sun Semi-Diameter 15'53.2"
Sun Equatorial Horizontal Parallax 08.7"
Moon Right Ascension 11h14m40.0s
Moon Declination +06°09'05.9"
Moon Semi-Diameter 15'26.6"
Moon Equatorial Horizontal Parallax 0°56'40.5"
ΔT 25.6 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. The first and last eclipse in this sequence is separated by one synodic month.

Eclipse season of August–September 1942
August 12
Ascending node (new moon)
August 26
Descending node (full moon)
September 10
Ascending node (new moon)
     
Partial solar eclipse
Solar Saros 115
Total lunar eclipse
Lunar Saros 127
Partial solar eclipse
Solar Saros 153
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Eclipses in 1942

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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 153

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Inex

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Triad

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Solar eclipses of 1939–1942

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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 eclipse on August 12, 1942 occurs in the next lunar year eclipse set.

Solar eclipse series sets from 1939 to 1942
Descending node   Ascending node
Saros Map Gamma Saros Map Gamma
118 April 19, 1939
 
Annular
0.9388 123 October 12, 1939
 
Total
−0.9737
128 April 7, 1940
 
Annular
0.219 133 October 1, 1940
 
Total
−0.2573
138 March 27, 1941
 
Annular
−0.5025 143 September 21, 1941
 
Total
0.4649
148 March 16, 1942
 
Partial
−1.1908 153 September 10, 1942
 
Partial
1.2571

Saros 153

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This eclipse is a part of Saros series 153, repeating every 18 years, 11 days, and containing 70 events. The series started with a partial solar eclipse on July 28, 1870. It contains annular eclipses from December 17, 2104 through May 26, 2970. There are no hybrid or total eclipses in this set. The series ends at member 70 as a partial eclipse on August 22, 3114. 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 38 at 7 minutes, 1 seconds on September 5, 2537. All eclipses in this series occur at the Moon’s ascending node of orbit.[4]

Series members 1–19 occur between 1870 and 2200:
1 2 3
 
July 28, 1870
 
August 7, 1888
 
August 20, 1906
4 5 6
 
August 30, 1924
 
September 10, 1942
 
September 20, 1960
7 8 9
 
October 2, 1978
 
October 12, 1996
 
October 23, 2014
10 11 12
 
November 3, 2032
 
November 14, 2050
 
November 24, 2068
13 14 15
 
December 6, 2086
 
December 17, 2104
 
December 28, 2122
16 17 18
 
January 8, 2141
 
January 19, 2159
 
January 29, 2177
19
 
February 10, 2195

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 ascending node.

23 eclipse events between February 3, 1859 and June 29, 1946
February 1–3 November 21–22 September 8–10 June 28–29 April 16–18
109 111 113 115 117
 
February 3, 1859
 
November 21, 1862
 
June 28, 1870
 
April 16, 1874
119 121 123 125 127
 
February 2, 1878
 
November 21, 1881
 
September 8, 1885
 
June 28, 1889
 
April 16, 1893
129 131 133 135 137
 
February 1, 1897
 
November 22, 1900
 
September 9, 1904
 
June 28, 1908
 
April 17, 1912
139 141 143 145 147
 
February 3, 1916
 
November 22, 1919
 
September 10, 1923
 
June 29, 1927
 
April 18, 1931
149 151 153 155
 
February 3, 1935
 
November 21, 1938
 
September 10, 1942
 
June 29, 1946

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 1801 and 1964
 
September 17, 1811
(Saros 141)
 
August 16, 1822
(Saros 142)
 
July 17, 1833
(Saros 143)
 
June 16, 1844
(Saros 144)
 
May 16, 1855
(Saros 145)
 
April 15, 1866
(Saros 146)
 
March 15, 1877
(Saros 147)
 
February 11, 1888
(Saros 148)
 
January 11, 1899
(Saros 149)
 
December 12, 1909
(Saros 150)
 
November 10, 1920
(Saros 151)
 
October 11, 1931
(Saros 152)
 
September 10, 1942
(Saros 153)
 
August 9, 1953
(Saros 154)
 
July 9, 1964
(Saros 155)

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
 
November 29, 1826
(Saros 149)
 
November 9, 1855
(Saros 150)
 
October 19, 1884
(Saros 151)
 
September 30, 1913
(Saros 152)
 
September 10, 1942
(Saros 153)
 
August 20, 1971
(Saros 154)
 
July 31, 2000
(Saros 155)
 
July 11, 2029
(Saros 156)
 
June 21, 2058
(Saros 157)
 
June 1, 2087
(Saros 158)
 
April 1, 2174
(Saros 161)

References

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  1. ^ "September 10, 1942 Partial Solar Eclipse". timeanddate. Retrieved 4 August 2024.
  2. ^ "Partial Solar Eclipse of 1942 Sep 10". EclipseWise.com. Retrieved 4 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 153". eclipse.gsfc.nasa.gov.
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