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Solar eclipse of March 16, 1942

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Solar eclipse of March 16, 1942
Map
Type of eclipse
NaturePartial
Gamma−1.1908
Magnitude0.6393
Maximum eclipse
Coordinates72°12′S 76°48′W / 72.2°S 76.8°W / -72.2; -76.8
Times (UTC)
Greatest eclipse23:37:07
References
Saros148 (17 of 75)
Catalog # (SE5000)9379

A partial solar eclipse occurred at the Moon's descending node of orbit between Monday, March 16 and Tuesday, March 17, 1942,[1] with a magnitude of 0.6393. 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.

A partial eclipse was visible for parts of Antarctica and southern Oceania.

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]

March 16, 1942 Solar Eclipse Times
Event Time (UTC)
First Penumbral External Contact 1942 March 16 at 21:44:48.6 UTC
Equatorial Conjunction 1942 March 16 at 22:54:14.8 UTC
Greatest Eclipse 1942 March 16 at 23:37:06.8 UTC
Ecliptic Conjunction 1942 March 16 at 23:50:18.2 UTC
Last Penumbral External Contact 1942 March 17 at 01:29:50.5 UTC
March 16, 1942 Solar Eclipse Parameters
Parameter Value
Eclipse Magnitude 0.63936
Eclipse Obscuration 0.54379
Gamma −1.19082
Sun Right Ascension 23h44m24.0s
Sun Declination -01°41'22.1"
Sun Semi-Diameter 16'04.3"
Sun Equatorial Horizontal Parallax 08.8"
Moon Right Ascension 23h45m46.3s
Moon Declination -02°45'29.1"
Moon Semi-Diameter 15'26.7"
Moon Equatorial Horizontal Parallax 0°56'41.2"
ΔT 25.4 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.

Eclipse season of March 1942
March 3
Ascending node (full moon)
March 16
Descending node (new moon)
Total lunar eclipse
Lunar Saros 122
Partial solar eclipse
Solar Saros 148
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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 148

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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 148

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This eclipse is a part of Saros series 148, repeating every 18 years, 11 days, and containing 75 events. The series started with a partial solar eclipse on September 21, 1653. It contains annular eclipses on April 29, 2014 and May 9, 2032; a hybrid eclipse on May 20, 2050; and total eclipses from May 31, 2068 through August 3, 2771. The series ends at member 75 as a partial eclipse on December 12, 2987. 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 22 at 22 seconds (by default) on May 9, 2032, and the longest duration of totality will be produced by member 54 at 5 minutes, 23 seconds on April 26, 2609. All eclipses in this series occur at the Moon’s descending node of orbit.[4]

Series members 10–31 occur between 1801 and 2200:
10 11 12

December 30, 1815

January 9, 1834

January 21, 1852
13 14 15

January 31, 1870

February 11, 1888

February 23, 1906
16 17 18

March 5, 1924

March 16, 1942

March 27, 1960
19 20 21

April 7, 1978

April 17, 1996

April 29, 2014
22 23 24

May 9, 2032

May 20, 2050

May 31, 2068
25 26 27

June 11, 2086

June 22, 2104

July 4, 2122
28 29 30

July 14, 2140

July 25, 2158

August 4, 2176
31

August 16, 2194

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 descending node.

22 eclipse events between March 16, 1866 and August 9, 1953
March 16–17 January 1–3 October 20–22 August 9–10 May 27–29
108 110 112 114 116

March 16, 1866

August 9, 1877

May 27, 1881
118 120 122 124 126

March 16, 1885

January 1, 1889

October 20, 1892

August 9, 1896

May 28, 1900
128 130 132 134 136

March 17, 1904

January 3, 1908

October 22, 1911

August 10, 1915

May 29, 1919
138 140 142 144 146

March 17, 1923

January 3, 1927

October 21, 1930

August 10, 1934

May 29, 1938
148 150 152 154

March 16, 1942

January 3, 1946

October 21, 1949

August 9, 1953

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.

The partial solar eclipse on November 4, 2116 (part of Saros 164) is also a part of this series but is not included in the table below.

Series members between 1801 and 2029

March 24, 1811
(Saros 136)

February 21, 1822
(Saros 137)

January 20, 1833
(Saros 138)

December 21, 1843
(Saros 139)

November 20, 1854
(Saros 140)

October 19, 1865
(Saros 141)

September 17, 1876
(Saros 142)

August 19, 1887
(Saros 143)

July 18, 1898
(Saros 144)

June 17, 1909
(Saros 145)

May 18, 1920
(Saros 146)

April 18, 1931
(Saros 147)

March 16, 1942
(Saros 148)

February 14, 1953
(Saros 149)

January 14, 1964
(Saros 150)

December 13, 1974
(Saros 151)

November 12, 1985
(Saros 152)

October 12, 1996
(Saros 153)

September 11, 2007
(Saros 154)

August 11, 2018
(Saros 155)

July 11, 2029
(Saros 156)

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

June 5, 1826
(Saros 144)

May 16, 1855
(Saros 145)

April 25, 1884
(Saros 146)

April 6, 1913
(Saros 147)

March 16, 1942
(Saros 148)

February 25, 1971
(Saros 149)

February 5, 2000
(Saros 150)

January 14, 2029
(Saros 151)

December 26, 2057
(Saros 152)

December 6, 2086
(Saros 153)

November 16, 2115
(Saros 154)

October 26, 2144
(Saros 155)

October 7, 2173
(Saros 156)

References

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  1. ^ "March 16–17, 1942 Partial Solar Eclipse". timeanddate. Retrieved 4 August 2024.
  2. ^ "Partial Solar Eclipse of 1942 Mar 16". 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 148". eclipse.gsfc.nasa.gov.
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