Solar eclipse of January 14, 1945

Solar eclipse of January 14, 1945
Map
Type of eclipse
NatureAnnular
Gamma−0.4937
Magnitude0.997
Maximum eclipse
Duration15 s (0 min 15 s)
Coordinates51°06′S 110°18′E / 51.1°S 110.3°E / -51.1; 110.3
Max. width of band12 km (7.5 mi)
Times (UTC)
Greatest eclipse5:01:43
References
Saros140 (25 of 71)
Catalog # (SE5000)9386

An annular solar eclipse occurred at the Moon's descending node of orbit on Sunday, January 14, 1945,[1] with a magnitude of 0.997. 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. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide. The Moon's apparent diameter was near the average diameter because it occurred 8.3 days after apogee (on January 5, 1945, at 20:40 UTC) and 3.5 days before perigee (on January 17, 1945, at 17:50 UTC).[2]

Annularity was visible from Eastern Cape in South Africa, and northeastern Tasmania Island and Furneaux Group in Australia. A partial eclipse was visible for parts of Southern Africa, Antarctica, Australia, and 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.[3]

January 14, 1945 Solar Eclipse Times
Event Time (UTC)
First Penumbral External Contact 1945 January 14 at 02:22:25.7 UTC
First Umbral External Contact 1945 January 14 at 03:26:59.2 UTC
First Central Line 1945 January 14 at 03:27:37.2 UTC
Greatest Duration 1945 January 14 at 03:27:37.2 UTC
First Umbral Internal Contact 1945 January 14 at 03:28:15.1 UTC
Equatorial Conjunction 1945 January 14 at 04:57:46.0 UTC
Greatest Eclipse 1945 January 14 at 05:01:43.2 UTC
Ecliptic Conjunction 1945 January 14 at 05:07:00.6 UTC
Last Umbral Internal Contact 1945 January 14 at 06:35:16.2 UTC
Last Central Line 1945 January 14 at 06:35:51.4 UTC
Last Umbral External Contact 1945 January 14 at 06:36:26.6 UTC
Last Penumbral External Contact 1945 January 14 at 07:40:56.5 UTC
January 14, 1945 Solar Eclipse Parameters
Parameter Value
Eclipse Magnitude 0.99704
Eclipse Obscuration 0.99409
Gamma −0.49366
Sun Right Ascension 19h42m12.3s
Sun Declination -21°22'08.0"
Sun Semi-Diameter 16'15.6"
Sun Equatorial Horizontal Parallax 08.9"
Moon Right Ascension 19h42m21.5s
Moon Declination -21°50'56.3"
Moon Semi-Diameter 15'59.0"
Moon Equatorial Horizontal Parallax 0°58'39.7"
ΔT 26.8 s

Eclipse season

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See also: Eclipse cycle

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 December 1944–January 1945
December 29
Ascending node (full moon)		 January 14
Descending node (new moon)
Penumbral lunar eclipse
Lunar Saros 114		 Annular solar eclipse
Solar Saros 140
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Eclipses in 1945

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Metonic

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Tzolkinex

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Half-Saros

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Tritos

[edit]

Solar Saros 140

[edit]

Inex

[edit]

Triad

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Solar eclipses of 1942–1946

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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.[4]

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
Saros Map Gamma Saros Map Gamma
115 August 12, 1942

Partial 		−1.5244 120 February 4, 1943

Total 		0.8734
125 August 1, 1943

Annular 		−0.8041 130 January 25, 1944

Total 		0.2025
135 July 20, 1944

Annular 		−0.0314 140 January 14, 1945

Annular 		−0.4937
145 July 9, 1945

Total 		0.7356 150 January 3, 1946

Partial 		−1.2392
155 June 29, 1946

Partial 		1.4361

Saros 140

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This eclipse is a part of Saros series 140, repeating every 18 years, 11 days, and containing 71 events. The series started with a partial solar eclipse on April 16, 1512. It contains total eclipses from July 21, 1656 through November 9, 1836; hybrid eclipses from November 20, 1854 through December 23, 1908; and annular eclipses from January 3, 1927 through December 7, 2485. The series ends at member 71 as a partial eclipse on June 1, 2774. 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 11 at 4 minutes, 10 seconds on August 12, 1692, and the longest duration of annularity will be produced by member 53 at 7 minutes, 35 seconds on November 15, 2449. All eclipses in this series occur at the Moon’s descending node of orbit.[5]

Series members 18–39 occur between 1801 and 2200:
18 19 20

October 29, 1818
November 9, 1836
November 20, 1854
21 22 23

November 30, 1872
December 12, 1890
December 23, 1908
24 25 26

January 3, 1927
January 14, 1945
January 25, 1963
27 28 29

February 4, 1981
February 16, 1999
February 26, 2017
30 31 32

March 9, 2035
March 20, 2053
March 31, 2071
33 34 35

April 10, 2089
April 23, 2107
May 3, 2125
36 37 38

May 14, 2143
May 25, 2161
June 5, 2179
39

June 15, 2197

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 27, 1884 and August 20, 1971
March 27–29 January 14 November 1–2 August 20–21 June 8
108 110 112 114 116

March 27, 1884
August 20, 1895
June 8, 1899
118 120 122 124 126

March 29, 1903
January 14, 1907
November 2, 1910
August 21, 1914
June 8, 1918
128 130 132 134 136

March 28, 1922
January 14, 1926
November 1, 1929
August 21, 1933
June 8, 1937
138 140 142 144 146

March 27, 1941
January 14, 1945
November 1, 1948
August 20, 1952
June 8, 1956
148 150 152 154

March 27, 1960
January 14, 1964
November 2, 1967
August 20, 1971

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 2200

February 21, 1803
(Saros 127)
January 21, 1814
(Saros 128)
December 20, 1824
(Saros 129)
November 20, 1835
(Saros 130)
October 20, 1846
(Saros 131)

September 18, 1857
(Saros 132)
August 18, 1868
(Saros 133)
July 19, 1879
(Saros 134)
June 17, 1890
(Saros 135)
May 18, 1901
(Saros 136)

April 17, 1912
(Saros 137)
March 17, 1923
(Saros 138)
February 14, 1934
(Saros 139)
January 14, 1945
(Saros 140)
December 14, 1955
(Saros 141)

November 12, 1966
(Saros 142)
October 12, 1977
(Saros 143)
September 11, 1988
(Saros 144)
August 11, 1999
(Saros 145)
July 11, 2010
(Saros 146)

June 10, 2021
(Saros 147)
May 9, 2032
(Saros 148)
April 9, 2043
(Saros 149)
March 9, 2054
(Saros 150)
February 5, 2065
(Saros 151)

January 6, 2076
(Saros 152)
December 6, 2086
(Saros 153)
November 4, 2097
(Saros 154)
October 5, 2108
(Saros 155)
September 5, 2119
(Saros 156)

August 4, 2130
(Saros 157)
July 3, 2141
(Saros 158)
June 3, 2152
(Saros 159)
April 1, 2174
(Saros 161)

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

April 3, 1829
(Saros 136)
March 15, 1858
(Saros 137)
February 22, 1887
(Saros 138)

February 3, 1916
(Saros 139)
January 14, 1945
(Saros 140)
December 24, 1973
(Saros 141)

December 4, 2002
(Saros 142)
November 14, 2031
(Saros 143)
October 24, 2060
(Saros 144)

October 4, 2089
(Saros 145)
September 15, 2118
(Saros 146)
August 26, 2147
(Saros 147)

August 4, 2176
(Saros 148)

Notes

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  1. ^ "January 14, 1945 Annular Solar Eclipse". timeanddate. Retrieved 4 August 2024.
  2. ^ "Moon Distances for London, United Kingdom, England". timeanddate. Retrieved 4 August 2024.
  3. ^ "Annular Solar Eclipse of 1945 Jan 14". EclipseWise.com. Retrieved 4 August 2024.
  4. ^ 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.
  5. ^ "NASA - Catalog of Solar Eclipses of Saros 140". eclipse.gsfc.nasa.gov.

References

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Retrieved from "https://en.wikipedia.org/w/index.php?title=Solar_eclipse_of_January_14,_1945&oldid=1238581613"