Solar eclipse of November 23, 1946

Last updated
Solar eclipse of November 23, 1946
SE1946Nov23P.png
Map
Type of eclipse
NaturePartial
Gamma 1.105
Magnitude 0.7758
Maximum eclipse
Coordinates 63°24′N45°18′W / 63.4°N 45.3°W / 63.4; -45.3
Times (UTC)
Greatest eclipse17:37:12
References
Saros 122 (54 of 70)
Catalog # (SE5000) 9391

A partial solar eclipse occurred at the Moon's descending node of orbit on Saturday, November 23, 1946, [1] with a magnitude of 0.7758. 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

This was the last of four partial solar eclipses in 1946, with the others occurring on January 3, May 30, and June 29.

A partial eclipse was visible for parts of Canada, the United States, the Caribbean, and northern South America.

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]

November 23, 1946 Solar Eclipse Times
EventTime (UTC)
First Penumbral External Contact1946 November 23 at 15:24:47.5 UTC
Equatorial Conjunction1946 November 23 at 16:55:38.1 UTC
Ecliptic Conjunction1946 November 23 at 17:24:13.7 UTC
Greatest Eclipse1946 November 23 at 17:37:12.3 UTC
Last Penumbral External Contact1946 November 23 at 19:49:56.7 UTC
November 23, 1946 Solar Eclipse Parameters
ParameterValue
Eclipse Magnitude0.77586
Eclipse Obscuration0.69076
Gamma1.10500
Sun Right Ascension15h54m45.3s
Sun Declination-20°19'54.3"
Sun Semi-Diameter16'12.0"
Sun Equatorial Horizontal Parallax08.9"
Moon Right Ascension15h56m01.8s
Moon Declination-19°22'58.6"
Moon Semi-Diameter14'45.7"
Moon Equatorial Horizontal Parallax0°54'10.6"
ΔT27.7 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.

Eclipse season of November–December 1946
November 23
Descending node (new moon)
December 8
Ascending node (full moon)
SE1946Nov23P.png Lunar eclipse chart close-1946Dec08.png
Partial solar eclipse
Solar Saros 122
Total lunar eclipse
Lunar Saros 134

Eclipses in 1946

Metonic

Tzolkinex

Half-Saros

Tritos

Solar Saros 122

Inex

Triad

Solar eclipses of 1946–1949

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 January 3, 1946 and June 29, 1946 occur in the previous lunar year eclipse set.

Solar eclipse series sets from 1946 to 1949
Ascending node Descending node
SarosMapGammaSarosMapGamma
117 May 30, 1946
SE1946May30P.png
Partial
−1.0711122 November 23, 1946
SE1946Nov23P.png
Partial
1.105
127 May 20, 1947
SE1947May20T.png
Total
−0.3528132 November 12, 1947
SE1947Nov12A.png
Annular
0.3743
137 May 9, 1948
SE1948May09A.png
Annular
0.4133142 November 1, 1948
SE1948Nov01T.png
Total
−0.3517
147 April 28, 1949
SE1949Apr28P.png
Partial
1.2068152 October 21, 1949
SE1949Oct21P.png
Partial
−1.027

Saros 122

This eclipse is a part of Saros series 122, repeating every 18 years, 11 days, and containing 70 events. The series started with a partial solar eclipse on April 17, 991 AD. It contains total eclipses from July 12, 1135 through August 3, 1171; hybrid eclipses on August 13, 1189 and August 25, 1207; and annular eclipses from September 4, 1225 through October 10, 1874. The series ends at member 70 as a partial eclipse on May 17, 2235. 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 9 at 1 minutes, 25 seconds on July 12, 1135, and the longest duration of annularity was produced by member 50 at 6 minutes, 28 seconds on October 10, 1874. All eclipses in this series occur at the Moon’s descending node of orbit. [4]

Series members 46–68 occur between 1801 and 2200:
464748
SE1802Aug28A.png
August 28, 1802
SE1820Sep07A.gif
September 7, 1820
SE1838Sep18A.gif
September 18, 1838
495051
SE1856Sep29A.gif
September 29, 1856
SE1874Oct10An.gif
October 10, 1874
SE1892Oct20P.gif
October 20, 1892
525354
SE1910Nov02P.png
November 2, 1910
SE1928Nov12P.png
November 12, 1928
SE1946Nov23P.png
November 23, 1946
555657
SE1964Dec04P.png
December 4, 1964
SE1982Dec15P.png
December 15, 1982
SE2000Dec25P.png
December 25, 2000
585960
SE2019Jan06P.png
January 6, 2019
SE2037Jan16P.png
January 16, 2037
SE2055Jan27P.png
January 27, 2055
616263
SE2073Feb07P.png
February 7, 2073
SE2091Feb18P.png
February 18, 2091
Saros122 63van70 SE2109Mar01P.jpg
March 1, 2109
646566
Saros122 64van70 SE2127Mar13P.jpg
March 13, 2127
Saros122 65van70 SE2145Mar23P.jpg
March 23, 2145
Saros122 66van70 SE2163Apr03P.jpg
April 3, 2163
6768
Saros122 67van70 SE2181Apr14P.jpg
April 14, 2181
Saros122 68van70 SE2199Apr25P.jpg
April 25, 2199

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 September 12, 1931 and July 1, 2011
September 11–12June 30–July 1April 17–19February 4–5November 22–23
114116118120122
SE1931Sep12P.png
September 12, 1931
SE1935Jun30P.png
June 30, 1935
SE1939Apr19A.png
April 19, 1939
SE1943Feb04T.png
February 4, 1943
SE1946Nov23P.png
November 23, 1946
124126128130132
SE1950Sep12T.png
September 12, 1950
SE1954Jun30T.png
June 30, 1954
SE1958Apr19A.png
April 19, 1958
SE1962Feb05T.png
February 5, 1962
SE1965Nov23A.png
November 23, 1965
134136138140142
SE1969Sep11A.png
September 11, 1969
SE1973Jun30T.png
June 30, 1973
SE1977Apr18A.png
April 18, 1977
SE1981Feb04A.png
February 4, 1981
SE1984Nov22T.png
November 22, 1984
144146148150152
SE1988Sep11A.png
September 11, 1988
SE1992Jun30T.png
June 30, 1992
SE1996Apr17P.png
April 17, 1996
SE2000Feb05P.png
February 5, 2000
SE2003Nov23T.png
November 23, 2003
154156
SE2007Sep11P.png
September 11, 2007
SE2011Jul01P.png
July 1, 2011

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 1801 and 2200
SE1805Jan01P.gif
January 1, 1805
(Saros 109)
SE1826Oct31P.gif
October 31, 1826
(Saros 111)
SE1848Aug28P.gif
August 28, 1848
(Saros 113)
SE1859Jul29P.gif
July 29, 1859
(Saros 114)
SE1870Jun28P.gif
June 28, 1870
(Saros 115)
SE1881May27P.gif
May 27, 1881
(Saros 116)
SE1892Apr26T.png
April 26, 1892
(Saros 117)
SE1903Mar29A.png
March 29, 1903
(Saros 118)
SE1914Feb25A.png
February 25, 1914
(Saros 119)
SE1925Jan24T.png
January 24, 1925
(Saros 120)
SE1935Dec25A.png
December 25, 1935
(Saros 121)
SE1946Nov23P.png
November 23, 1946
(Saros 122)
SE1957Oct23T.png
October 23, 1957
(Saros 123)
SE1968Sep22T.png
September 22, 1968
(Saros 124)
SE1979Aug22A.png
August 22, 1979
(Saros 125)
SE1990Jul22T.png
July 22, 1990
(Saros 126)
SE2001Jun21T.png
June 21, 2001
(Saros 127)
SE2012May20A.png
May 20, 2012
(Saros 128)
SE2023Apr20H.png
April 20, 2023
(Saros 129)
SE2034Mar20T.png
March 20, 2034
(Saros 130)
SE2045Feb16A.png
February 16, 2045
(Saros 131)
SE2056Jan16A.png
January 16, 2056
(Saros 132)
SE2066Dec17T.png
December 17, 2066
(Saros 133)
SE2077Nov15A.png
November 15, 2077
(Saros 134)
SE2088Oct14A.png
October 14, 2088
(Saros 135)
SE2099Sep14T.png
September 14, 2099
(Saros 136)
SE2110Aug15A.png
August 15, 2110
(Saros 137)
SE2121Jul14A.png
July 14, 2121
(Saros 138)
SE2132Jun13T.png
June 13, 2132
(Saros 139)
SE2143May14A.png
May 14, 2143
(Saros 140)
SE2154Apr12A.png
April 12, 2154
(Saros 141)
SE2165Mar12T.png
March 12, 2165
(Saros 142)
SE2176Feb10A.png
February 10, 2176
(Saros 143)
SE2187Jan09A.png
January 9, 2187
(Saros 144)
SE2197Dec09T.png
December 9, 2197
(Saros 145)

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
SE1802Mar04T.png
March 4, 1802
(Saros 117)
SE1831Feb12A.gif
February 12, 1831
(Saros 118)
SE1860Jan23A.png
January 23, 1860
(Saros 119)
SE1889Jan01T.png
January 1, 1889
(Saros 120)
SE1917Dec14A.png
December 14, 1917
(Saros 121)
SE1946Nov23P.png
November 23, 1946
(Saros 122)
SE1975Nov03P.png
November 3, 1975
(Saros 123)
SE2004Oct14P.png
October 14, 2004
(Saros 124)
SE2033Sep23P.png
September 23, 2033
(Saros 125)
SE2062Sep03P.png
September 3, 2062
(Saros 126)
SE2091Aug15T.png
August 15, 2091
(Saros 127)
SE2120Jul25A.png
July 25, 2120
(Saros 128)
Saros129 59van80 SE2149Jul05T.jpg
July 5, 2149
(Saros 129)
SE2178Jun16T.png
June 16, 2178
(Saros 130)

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References

  1. "November 23, 1946 Partial Solar Eclipse". timeanddate. Retrieved 4 August 2024.
  2. "Partial Solar Eclipse of 1946 Nov 23". 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 122". eclipse.gsfc.nasa.gov.