Solar eclipse of August 12, 1942

Last updated
Solar eclipse of August 12, 1942
SE1942Aug12P.png
Map
Type of eclipse
NaturePartial
Gamma −1.5244
Magnitude 0.0561
Maximum eclipse
Coordinates 70°24′S99°54′E / 70.4°S 99.9°E / -70.4; 99.9
Times (UTC)
Greatest eclipse2:45:12
References
Saros 115 (72 of 72)
Catalog # (SE5000) 9381

A partial solar eclipse occurred at the Moon's ascending node of orbit on Wednesday, August 12, 1942, [1] with a magnitude of 0.0561. 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 Antarctica. This was the last of 72 solar eclipses in Solar Saros 115.

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. [2]

August 12, 1942 Solar Eclipse Times
EventTime (UTC)
First Penumbral External Contact1942 August 12 at 02:08:33.6 UTC
Ecliptic Conjunction1942 August 12 at 02:28:04.4 UTC
Greatest Eclipse1942 August 12 at 02:45:11.6 UTC
Last Penumbral External Contact1942 August 12 at 03:21:27.7 UTC
Equatorial Conjunction1942 August 12 at 03:24:16.4 UTC
August 12, 1942 Solar Eclipse Parameters
ParameterValue
Eclipse Magnitude0.05620
Eclipse Obscuration0.01566
Gamma−1.52444
Sun Right Ascension09h24m47.6s
Sun Declination+15°12'09.3"
Sun Semi-Diameter15'47.0"
Sun Equatorial Horizontal Parallax08.7"
Moon Right Ascension09h23m32.6s
Moon Declination+13°50'08.2"
Moon Semi-Diameter15'03.2"
Moon Equatorial Horizontal Parallax0°55'14.6"
ΔT25.5 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 1942
August 12
Ascending node (new moon)		 August 26
Descending node (full moon)		 September 10
Ascending node (new moon)
SE1942Aug12P.png Lunar eclipse chart close-1942Aug26.png SE1942Sep10P.png
Partial solar eclipse
Solar Saros 115		 Total lunar eclipse
Lunar Saros 127		 Partial solar eclipse
Solar Saros 153

Eclipses in 1942

Metonic

Tzolkinex

Half-Saros

Tritos

Solar Saros 115

Inex

Triad

Solar eclipses of 1942–1946

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 March 16, 1942 and September 10, 1942 occur in the previous lunar year eclipse set, and the partial solar eclipses on May 30, 1946 and November 23, 1946 occur in the next lunar year eclipse set.

Solar eclipse series sets from 1942 to 1946
Ascending node Descending node
SarosMapGammaSarosMapGamma
115 August 12, 1942
SE1942Aug12P.png
Partial		−1.5244120 February 4, 1943
SE1943Feb04T.png
Total		0.8734
125 August 1, 1943
SE1943Aug01A.png
Annular		−0.8041130 January 25, 1944
SE1944Jan25T.png
Total		0.2025
135 July 20, 1944
SE1944Jul20A.png
Annular		−0.0314140 January 14, 1945
SE1945Jan14A.png
Annular		−0.4937
145 July 9, 1945
1945Jul09T.png
Total		0.7356150 January 3, 1946
SE1946Jan03P.png
Partial		−1.2392
155 June 29, 1946
SE1946Jun29P.png
Partial		1.4361

Saros 115

This eclipse is a part of Saros series 115, repeating every 18 years, 11 days, and containing 72 events. The series started with a partial solar eclipse on June 21, 662 AD. It contains total eclipses from October 7, 842 AD through November 2, 1491; hybrid eclipses from November 12, 1509 through December 15, 1563; and annular eclipses from December 25, 1581 through May 27, 1816. The series ends at member 72 as a partial eclipse on August 12, 1942. 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 totality was produced by member 36 at 6 minutes, 24 seconds on July 5, 1293, and the longest duration of annularity was produced by member 65 at 1 minutes, 54 seconds on May 27, 1816. All eclipses in this series occur at the Moon’s ascending node of orbit. [4]

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 January 5, 1935 and August 11, 2018
January 4–5October 23–24August 10–12May 30–31March 18–19
111113115117119
SE1935Jan05P.png
January 5, 1935 		SE1942Aug12P.png
August 12, 1942 		SE1946May30P.png
May 30, 1946 		SE1950Mar18A.png
March 18, 1950
121123125127129
SE1954Jan05A.png
January 5, 1954 		SE1957Oct23T.png
October 23, 1957 		SE1961Aug11A.png
August 11, 1961 		SE1965May30T.png
May 30, 1965 		SE1969Mar18A.png
March 18, 1969
131133135137139
SE1973Jan04A.png
January 4, 1973 		SE1976Oct23T.png
October 23, 1976 		SE1980Aug10A.png
August 10, 1980 		SE1984May30A.png
May 30, 1984 		SE1988Mar18T.png
March 18, 1988
141143145147149
SE1992Jan04A.png
January 4, 1992 		SE1995Oct24T.png
October 24, 1995 		SE1999Aug11T.png
August 11, 1999 		SE2003May31A.png
May 31, 2003 		SE2007Mar19P.png
March 19, 2007
151153155
SE2011Jan04P.png
January 4, 2011 		SE2014Oct23P.png
October 23, 2014 		SE2018Aug11P.png
August 11, 2018

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 1866 and 2200
SE1866Mar16P.gif
March 16, 1866
(Saros 108)		 SE1898Dec13P.gif
December 13, 1898
(Saros 111)
SE1931Sep12P.png
September 12, 1931
(Saros 114)		 SE1942Aug12P.png
August 12, 1942
(Saros 115)		 SE1953Jul11P.png
July 11, 1953
(Saros 116)		 SE1964Jun10P.png
June 10, 1964
(Saros 117)
SE1975May11P.png
May 11, 1975
(Saros 118)		 SE1986Apr09P.png
April 9, 1986
(Saros 119)		 SE1997Mar09T.png
March 9, 1997
(Saros 120)		 SE2008Feb07A.png
February 7, 2008
(Saros 121)		 SE2019Jan06P.png
January 6, 2019
(Saros 122)
SE2029Dec05P.png
December 5, 2029
(Saros 123)		 SE2040Nov04P.png
November 4, 2040
(Saros 124)		 SE2051Oct04P.png
October 4, 2051
(Saros 125)		 SE2062Sep03P.png
September 3, 2062
(Saros 126)		 SE2073Aug03T.png
August 3, 2073
(Saros 127)
SE2084Jul03A.png
July 3, 2084
(Saros 128)		 SE2095Jun02T.png
June 2, 2095
(Saros 129)		 SE2106May03T.png
May 3, 2106
(Saros 130)		 SE2117Apr02A.png
April 2, 2117
(Saros 131)		 SE2128Mar01A.png
March 1, 2128
(Saros 132)
SE2139Jan30T.png
January 30, 2139
(Saros 133)		 SE2149Dec30A.png
December 30, 2149
(Saros 134)		 SE2160Nov27A.png
November 27, 2160
(Saros 135)		 SE2171Oct29T.png
October 29, 2171
(Saros 136)		 SE2182Sep27A.png
September 27, 2182
(Saros 137)
SE2193Aug26A.png
August 26, 2193
(Saros 138)

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)

See also

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References

  1. ↑ "August 12, 1942 Partial Solar Eclipse". timeanddate. Retrieved 4 August 2024.
  2. ↑ "Partial Solar Eclipse of 1942 Aug 12". 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 115". eclipse.gsfc.nasa.gov.
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