Solar eclipse of August 31, 1913

Last updated
Solar eclipse of August 31, 1913
SE1913Aug31P.png
Map
Type of eclipse
NaturePartial
Gamma 1.4512
Magnitude 0.1513
Maximum eclipse
Coordinates 61°30′N26°48′W / 61.5°N 26.8°W / 61.5; -26.8
Times (UTC)
Greatest eclipse20:52:12
References
Saros 114 (71 of 72)
Catalog # (SE5000) 9312

A partial solar eclipse occurred at the Moon's descending node of orbit on Sunday, August 31, 1913, [1] [2] [3] with a magnitude of 0.1513. 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.

Contents

A partial eclipse was visible for parts of eastern Canada and Greenland.

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. [4]

August 31, 1913 Solar Eclipse Times
EventTime (UTC)
Equatorial Conjunction1913 August 31 at 19:35:08.9 UTC
First Penumbral External Contact1913 August 31 at 20:02:37.1 UTC
Ecliptic Conjunction1913 August 31 at 20:38:01.7 UTC
Greatest Eclipse1913 August 31 at 20:52:11.8 UTC
Last Penumbral External Contact1913 August 31 at 21:42:17.1 UTC
August 31, 1913 Solar Eclipse Parameters
ParameterValue
Eclipse Magnitude0.15134
Eclipse Obscuration0.06998
Gamma1.45121
Sun Right Ascension10h37m57.1s
Sun Declination+08°38'38.2"
Sun Semi-Diameter15'51.0"
Sun Equatorial Horizontal Parallax08.7"
Moon Right Ascension10h40m42.4s
Moon Declination+09°57'27.7"
Moon Semi-Diameter16'42.1"
Moon Equatorial Horizontal Parallax1°01'17.9"
ΔT15.5 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. The first and last eclipse in this sequence is separated by one synodic month.

Eclipse season of August–September 1913
August 31
Descending node (new moon)		 September 15
Ascending node (full moon)		 September 30
Descending node (new moon)
SE1913Aug31P.png Lunar eclipse chart close-1913Sep15.png SE1913Sep30P.png
Partial solar eclipse
Solar Saros 114		 Total lunar eclipse
Lunar Saros 126		 Partial solar eclipse
Solar Saros 152

Eclipses in 1913

Metonic

Tzolkinex

Tritos

Solar Saros 114

Inex

Triad

Solar eclipses of 1913–1917

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. [5]

The partial solar eclipses on April 6, 1913 and September 30, 1913 occur in the previous lunar year eclipse set, and the solar eclipses on December 24, 1916 (partial), June 19, 1917 (partial), and December 14, 1917 (annular) occur in the next lunar year eclipse set.

Solar eclipse series sets from 1913 to 1917
Descending node Ascending node
SarosMapGammaSarosMapGamma
114 August 31, 1913
SE1913Aug31P.png
Partial		1.4512119 February 25, 1914
SE1914Feb25A.png
Annular		−0.9416
124 August 21, 1914
SE1914Aug21T.png
Total		0.7655129 February 14, 1915
SE1915Feb14A.png
Annular		−0.2024
134 August 10, 1915
SE1915Aug10A.png
Annular		0.0124139
Solar eclipse of February 3, 1916 (cropped).png 		February 3, 1916
SE1916Feb03T.png
Total		0.4987
144 July 30, 1916
SE1916Jul30A.png
Annular		−0.7709149 January 23, 1917
SE1917Jan23P.png
Partial		1.1508
154 July 19, 1917
SE1917Jul19P.png
Partial		−1.5101

Saros 114

This eclipse is a part of Saros series 114, repeating every 18 years, 11 days, and containing 72 events. The series started with a partial solar eclipse on July 23, 651 AD. It contains annular eclipses from February 3, 976 AD through June 11, 1192; hybrid eclipses from June 22, 1210 through December 1, 1480; and total eclipses from December 13, 1498 through June 15, 1787. The series ends at member 72 as a partial eclipse on September 12, 1931. 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 20 at 4 minutes, 33 seconds on February 13, 994 AD, and the longest duration of totality was produced by member 59 at 4 minutes, 18 seconds on April 21, 1697. All eclipses in this series occur at the Moon’s descending node of orbit. [6]

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 April 8, 1902 and August 31, 1989
April 7–8January 24–25November 12August 31–September 1June 19–20
108110112114116
SE1902Apr08P.png
April 8, 1902 		SE1913Aug31P.png
August 31, 1913 		SE1917Jun19P.png
June 19, 1917
118120122124126
SE1921Apr08A.png
April 8, 1921 		SE1925Jan24T.png
January 24, 1925 		SE1928Nov12P.png
November 12, 1928 		SE1932Aug31T.png
August 31, 1932 		SE1936Jun19T.png
June 19, 1936
128130132134136
SE1940Apr07A.png
April 7, 1940 		SE1944Jan25T.png
January 25, 1944 		SE1947Nov12A.png
November 12, 1947 		SE1951Sep01A.png
September 1, 1951 		SE1955Jun20T.png
June 20, 1955
138140142144146
SE1959Apr08A.png
April 8, 1959 		SE1963Jan25A.png
January 25, 1963 		SE1966Nov12T.png
November 12, 1966 		SE1970Aug31A.png
August 31, 1970 		SE1974Jun20T.png
June 20, 1974
148150152154
SE1978Apr07P.png
April 7, 1978 		SE1982Jan25P.png
January 25, 1982 		SE1985Nov12T.png
November 12, 1985 		SE1989Aug31P.png
August 31, 1989

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.

Series members between 1837 and 2200
SE1837Apr05P.png
April 5, 1837
(Saros 107)		 SE1848Mar05P.gif
March 5, 1848
(Saros 108)		 SE1859Feb03P.png
February 3, 1859
(Saros 109)		 SE1880Dec02P.gif
December 2, 1880
(Saros 111)
SE1913Aug31P.png
August 31, 1913
(Saros 114)		 SE1924Jul31P.png
July 31, 1924
(Saros 115)		 SE1935Jun30P.png
June 30, 1935
(Saros 116)
SE1946May30P.png
May 30, 1946
(Saros 117)		 SE1957Apr30A.png
April 30, 1957
(Saros 118)		 SE1968Mar28P.png
March 28, 1968
(Saros 119)		 SE1979Feb26T.png
February 26, 1979
(Saros 120)		 SE1990Jan26A.png
January 26, 1990
(Saros 121)
SE2000Dec25P.png
December 25, 2000
(Saros 122)		 SE2011Nov25P.png
November 25, 2011
(Saros 123)		 SE2022Oct25P.png
October 25, 2022
(Saros 124)		 SE2033Sep23P.png
September 23, 2033
(Saros 125)		 SE2044Aug23T.png
August 23, 2044
(Saros 126)
SE2055Jul24T.png
July 24, 2055
(Saros 127)		 SE2066Jun22A.png
June 22, 2066
(Saros 128)		 SE2077May22T.png
May 22, 2077
(Saros 129)		 SE2088Apr21T.png
April 21, 2088
(Saros 130)		 SE2099Mar21A.png
March 21, 2099
(Saros 131)
SE2110Feb18A.png
February 18, 2110
(Saros 132)		 SE2121Jan19T.png
January 19, 2121
(Saros 133)		 SE2131Dec19A.png
December 19, 2131
(Saros 134)		 SE2142Nov17A.png
November 17, 2142
(Saros 135)		 SE2153Oct17T.png
October 17, 2153
(Saros 136)
SE2164Sep16A.png
September 16, 2164
(Saros 137)		 SE2175Aug16A.png
August 16, 2175
(Saros 138)		 SE2186Jul16T.png
July 16, 2186
(Saros 139)		 SE2197Jun15A.png
June 15, 2197
(Saros 140)

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
SE1826Oct31P.gif
October 31, 1826
(Saros 111)
SE1913Aug31P.png
August 31, 1913
(Saros 114)		 SE1942Aug12P.png
August 12, 1942
(Saros 115)		 SE1971Jul22P.png
July 22, 1971
(Saros 116)
SE2000Jul01P.png
July 1, 2000
(Saros 117)		 SE2029Jun12P.png
June 12, 2029
(Saros 118)		 SE2058May22P.png
May 22, 2058
(Saros 119)
SE2087May02P.png
May 2, 2087
(Saros 120)		 Saros121 66van71 SE2116Apr13P.jpg
April 13, 2116
(Saros 121)		 Saros122 65van70 SE2145Mar23P.jpg
March 23, 2145
(Saros 122)
Saros123 62van70 SE2174Mar03P.jpg
March 3, 2174
(Saros 123)

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References

  1. ↑ "August 31, 1913 Partial Solar Eclipse". timeanddate. Retrieved 31 July 2024.
  2. ↑ "THREE ECLIPSES IN NEXT TWO MONTHS". The Roanoke Times. Roanoke, Virginia. 1913-08-13. p. 3. Retrieved 2023-11-04– via Newspapers.com.
  3. ↑ "The second solar eclipse of the year". Star Tribune. Minneapolis, Minnesota. 1913-08-31. p. 28. Retrieved 2023-11-04– via Newspapers.com.
  4. ↑ "Partial Solar Eclipse of 1913 Aug 31". EclipseWise.com. Retrieved 31 July 2024.
  5. ↑ 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.
  6. ↑ "NASA - Catalog of Solar Eclipses of Saros 114". eclipse.gsfc.nasa.gov.
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