Solar eclipse of October 12, 1939

Last updated
Solar eclipse of October 12, 1939
SE1939Oct12T.png
Map
Type of eclipse
NatureTotal
Gamma −0.9737
Magnitude 1.0266
Maximum eclipse
Duration92 s (1 min 32 s)
Coordinates 72°48′S155°06′E / 72.8°S 155.1°E / -72.8; 155.1
Max. width of band418 km (260 mi)
Times (UTC)
Greatest eclipse20:40:23
References
Saros 123 (49 of 70)
Catalog # (SE5000) 9374

A total solar eclipse occurred at the Moon's ascending node of orbit on Thursday, October 12, 1939, with a magnitude of 1.0266. 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 total solar eclipse occurs when the Moon's apparent diameter is larger than the Sun's, blocking all direct sunlight, turning day into darkness. Totality occurs in a narrow path across Earth's surface, with the partial solar eclipse visible over a surrounding region thousands of kilometres wide.

Contents

Eclipses in 1939

Metonic

Tzolkinex

Half-Saros

Tritos

Solar Saros 123

Inex

Triad

Solar eclipses of 1939–1942

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. [1]

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
SarosMapGammaSarosMapGamma
118 April 19, 1939
SE1939Apr19A.png
Annular
0.9388123 October 12, 1939
SE1939Oct12T.png
Total
−0.9737
128 April 7, 1940
SE1940Apr07A.png
Annular
0.219133 October 1, 1940
SE1940Oct01T.png
Total
−0.2573
138 March 27, 1941
SE1941Mar27A.png
Annular
−0.5025143 September 21, 1941
SE1941Sep21T.png
Total
0.4649
148 March 16, 1942
SE1942Mar16P.png
Partial
−1.1908153 September 10, 1942
SE1942Sep10P.png
Partial
1.2571

Saros 123

This eclipse is a part of Saros series 123, repeating every 18 years, 11 days, and containing 70 events. The series started with a partial solar eclipse on April 29, 1074. It contains annular eclipses from July 2, 1182 through April 19, 1651; hybrid eclipses from April 30, 1669 through May 22, 1705; and total eclipses from June 3, 1723 through October 23, 1957. The series ends at member 70 as a partial eclipse on May 31, 2318. 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 19 at 8 minutes, 7 seconds on November 9, 1398, and the longest duration of totality was produced by member 42 at 3 minutes, 27 seconds on July 27, 1813. All eclipses in this series occur at the Moon’s ascending node of orbit. [2]

Series members 42–63 occur between 1801 and 2200:
424344
SE1813Jul27T.gif
July 27, 1813
SE1831Aug07T.gif
August 7, 1831
SE1849Aug18T.gif
August 18, 1849
454647
SE1867Aug29T.png
August 29, 1867
SE1885Sep08T.png
September 8, 1885
SE1903Sep21T.png
September 21, 1903
484950
SE1921Oct01T.png
October 1, 1921
SE1939Oct12T.png
October 12, 1939
SE1957Oct23T.png
October 23, 1957
515253
SE1975Nov03P.png
November 3, 1975
SE1993Nov13P.png
November 13, 1993
SE2011Nov25P.png
November 25, 2011
545556
SE2029Dec05P.png
December 5, 2029
SE2047Dec16P.png
December 16, 2047
SE2065Dec27P.png
December 27, 2065
575859
SE2084Jan07P.png
January 7, 2084
Saros123 58van70 SE2102Jan19P.jpg
January 19, 2102
Saros123 59van70 SE2120Jan30P.jpg
January 30, 2120
606162
Saros123 60van70 SE2138Feb09P.jpg
February 9, 2138
Saros123 61van70 SE2156Feb21P.jpg
February 21, 2156
Saros123 62van70 SE2174Mar03P.jpg
March 3, 2174
63
Saros123 63van70 SE2192Mar13P.jpg
March 13, 2192

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 ascending node.

22 eclipse events between December 24, 1916 and July 31, 2000
December 24–25October 12July 31–August 1May 19–20March 7
111113115117119
SE1916Dec24P.png
December 24, 1916
SE1924Jul31P.png
July 31, 1924
SE1928May19T.png
May 19, 1928
SE1932Mar07A.png
March 7, 1932
121123125127129
SE1935Dec25A.png
December 25, 1935
SE1939Oct12T.png
October 12, 1939
SE1943Aug01A.png
August 1, 1943
SE1947May20T.png
May 20, 1947
SE1951Mar07A.png
March 7, 1951
131133135137139
SE1954Dec25A.png
December 25, 1954
SE1958Oct12T.png
October 12, 1958
SE1962Jul31A.png
July 31, 1962
SE1966May20A.png
May 20, 1966
SE1970Mar07T.png
March 7, 1970
141143145147149
SE1973Dec24A.png
December 24, 1973
SE1977Oct12T.png
October 12, 1977
SE1981Jul31T.png
July 31, 1981
SE1985May19P.png
May 19, 1985
SE1989Mar07P.png
March 7, 1989
151153155
SE1992Dec24P.png
December 24, 1992
SE1996Oct12P.png
October 12, 1996
SE2000Jul31P.png
July 31, 2000

Notes

  1. 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.
  2. "NASA - Catalog of Solar Eclipses of Saros 123". eclipse.gsfc.nasa.gov.

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References