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Solar eclipse of June 10, 1964

Solar eclipse of June 10, 1964
Map
Type of eclipse
NaturePartial
Gamma−1.1393
Magnitude0.7545
Maximum eclipse
Coordinates65°00′S 135°54′E / 65°S 135.9°E / -65; 135.9
Times (UTC)
Greatest eclipse4:34:07
References
Saros117 (66 of 71)
Catalog # (SE5000)9430

A partial solar eclipse occurred at the Moon's ascending node of orbit on Wednesday, June 10, 1964,[1] with a magnitude of 0.7545. 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.

This was the second of four partial solar eclipses in 1964, with the others occurring on January 14, July 9, and December 4.

A partial eclipse was visible for parts of Australia and western Oceania.

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]

June 10, 1964 Solar Eclipse Times
Event Time (UTC)
First Penumbral External Contact 1964 June 10 at 02:49:28.6 UTC
Equatorial Conjunction 1964 June 10 at 04:13:17.5 UTC
Ecliptic Conjunction 1964 June 10 at 04:22:52.0 UTC
Greatest Eclipse 1964 June 10 at 04:34:07.0 UTC
Last Penumbral External Contact 1964 June 10 at 06:18:54.5 UTC
June 10, 1964 Solar Eclipse Parameters
Parameter Value
Eclipse Magnitude 0.75455
Eclipse Obscuration 0.70285
Gamma −1.13926
Sun Right Ascension 05h13m32.2s
Sun Declination +23°00'50.0"
Sun Semi-Diameter 15'45.1"
Sun Equatorial Horizontal Parallax 08.7"
Moon Right Ascension 05h14m24.9s
Moon Declination +21°52'09.4"
Moon Semi-Diameter 16'43.2"
Moon Equatorial Horizontal Parallax 1°01'21.8"
ΔT 35.3 s

Eclipse season

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. The first and last eclipse in this sequence is separated by one synodic month.

Eclipse season of June–July 1964
June 10
Ascending node (new moon)
 June 25
Descending node (full moon)		 July 9
Ascending node (new moon)
Partial solar eclipse
Solar Saros 117		 Total lunar eclipse
Lunar Saros 129		 Partial solar eclipse
Solar Saros 155

Eclipses in 1964

Metonic

Tzolkinex

Half-Saros

Tritos

Solar Saros 117

Inex

Triad

Solar eclipses of 1964–1967

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 14, 1964 and July 9, 1964 occur in the previous lunar year eclipse set.

Solar eclipse series sets from 1964 to 1967
Ascending node   Descending node
Saros Map Gamma Saros Map Gamma
117 June 10, 1964

Partial 		−1.1393 122 December 4, 1964

Partial 		1.1193
127 May 30, 1965

Total 		−0.4225 132 November 23, 1965

Annular 		0.3906
137 May 20, 1966

Annular 		0.3467 142 November 12, 1966

Total 		−0.33
147 May 9, 1967

Partial 		1.1422 152 November 2, 1967

Total (non-central) 		1.0007

Saros 117

This eclipse is a part of Saros series 117, repeating every 18 years, 11 days, and containing 71 events. The series started with a partial solar eclipse on June 24, 792 AD. It contains annular eclipses from September 18, 936 AD through May 14, 1333; hybrid eclipses from May 25, 1351 through July 8, 1423; and total eclipses from July 18, 1441 through May 19, 1928. The series ends at member 71 as a partial eclipse on August 3, 2054. 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 16 at 9 minutes, 26 seconds on December 3, 1062, and the longest duration of totality was produced by member 62 at 4 minutes, 19 seconds on April 26, 1892. 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.

20 eclipse events between June 10, 1964 and August 21, 2036
June 10–11 March 28–29 January 14–16 November 3 August 21–22
117 119 121 123 125

June 10, 1964
March 28, 1968
January 16, 1972
November 3, 1975
August 22, 1979
127 129 131 133 135

June 11, 1983
March 29, 1987
January 15, 1991
November 3, 1994
August 22, 1998
137 139 141 143 145

June 10, 2002
March 29, 2006
January 15, 2010
November 3, 2013
August 21, 2017
147 149 151 153 155

June 10, 2021
March 29, 2025
January 14, 2029
November 3, 2032
August 21, 2036

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

March 16, 1866
(Saros 108)
December 13, 1898
(Saros 111)

September 12, 1931
(Saros 114)
August 12, 1942
(Saros 115)
July 11, 1953
(Saros 116)
June 10, 1964
(Saros 117)

May 11, 1975
(Saros 118)
April 9, 1986
(Saros 119)
March 9, 1997
(Saros 120)
February 7, 2008
(Saros 121)
January 6, 2019
(Saros 122)

December 5, 2029
(Saros 123)
November 4, 2040
(Saros 124)
October 4, 2051
(Saros 125)
September 3, 2062
(Saros 126)
August 3, 2073
(Saros 127)

July 3, 2084
(Saros 128)
June 2, 2095
(Saros 129)
May 3, 2106
(Saros 130)
April 2, 2117
(Saros 131)
March 1, 2128
(Saros 132)

January 30, 2139
(Saros 133)
December 30, 2149
(Saros 134)
November 27, 2160
(Saros 135)
October 29, 2171
(Saros 136)
September 27, 2182
(Saros 137)

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

September 19, 1819
(Saros 112)
August 28, 1848
(Saros 113)
August 9, 1877
(Saros 114)

July 21, 1906
(Saros 115)
June 30, 1935
(Saros 116)
June 10, 1964
(Saros 117)

May 21, 1993
(Saros 118)
April 30, 2022
(Saros 119)
April 11, 2051
(Saros 120)

March 21, 2080
(Saros 121)
March 1, 2109
(Saros 122)
February 9, 2138
(Saros 123)

January 21, 2167
(Saros 124)
December 31, 2195
(Saros 125)

References

  1. ^ "June 10, 1964 Partial Solar Eclipse". timeanddate. Retrieved 7 August 2024.
  2. ^ "Partial Solar Eclipse of 1964 Jun 10". EclipseWise.com. Retrieved 7 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 117". eclipse.gsfc.nasa.gov.
Quelle: https://en.wikipedia.org/wiki/Solar_eclipse_of_June_10,_1964