Solar eclipse of November 23, 1965

Solar eclipse of November 23, 1965
Map
Type of eclipse
Nature	Annular
Gamma	0.3906
Magnitude	0.9656
Maximum eclipse
Duration	242 s (4 min 2 s)
Coordinates	1°42′N119°48′E / 1.7°N 119.8°E / 1.7; 119.8
Max. width of band	134 km (83 mi)
Times (UTC)
Greatest eclipse	4:14:51
References
Saros	132 (43 of 71)
Catalog # (SE5000)	9433

An annular solar eclipse occurred on November 23, 1965. 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. Annularity was visible from the Soviet Union (today's eastern Turkmenistan, southern Uzbekistan and southwestern Tajikistan), Afghanistan, Pakistan, India, China, Nepal (including the capital city Kathmandu), southwestern Sikkim (now merged with India), Burma, southwestern tip of Sainyabuli Province in Laos, Cambodia, South Vietnam (now belonging to Vietnam), Spratly Islands, Brunei, Malaysia, Indonesia, the Territory of Papua New Guinea (today's Papua New Guinea), and Gilbert and Ellice Islands (the part now belonging to Kiribati). 8 of the 14 eight-thousanders—Dhaulagiri, Annapurna, Manaslu, Shishapangma, Cho Oyu, Everest, Lhotse and Makalu, as well as the highest peak of Oceania, Puncak Jaya, lie in the path of annularity.

Observation

An observation team of the Lockheed Corporation and the United States Air Force observed the annular eclipse near Chiang Mai, Thailand's second largest city. They calculated the relationship between the angular diameters of the moon and the sun during annularity, and the flattening of the moon based on the results ^[1] .

Related eclipses

Solar eclipses of 1964–1967

This eclipse is a member of a 1964–1967 series at alternating nodes every 6 synodic months.

Note: Partial solar eclipses on January 14, 1964 and July 9, 1964 belong to the previous lunar year set.

Solar eclipse series sets from 1964 to 1967
Ascending node				Descending node
Saros	Map	Gamma		Saros	Map	Gamma
117	1964 June 10 Partial	−1.13926		122	1964 December 04 Partial	1.11929
127	1965 May 30 Total	−0.42251		132	1965 November 23 Annular	0.39061
137	1966 May 20 Annular	0.34672		142	1966 November 12 Total	−0.33001
147	1967 May 09 Partial	1.14218		152	1967 November 02 Total (non-central)	−1.00067

Saros 132

This eclipse is a part of Saros cycle 132, repeating every 18 years, 11 days, containing 71 events. The series started with partial solar eclipse on August 13, 1208. It contains annular eclipses from March 17, 1569 through March 12, 2146, hybrid on March 22, 2164 and April 3, 2182 and total eclipses from April 14, 2200 through June 19, 2308. The series ends at member 71 as a partial eclipse on September 25, 2470. The longest duration of annularity was 6 minutes, 56 seconds on May 9, 1641, and totality will be 2 minutes, 14 seconds on June 8, 2290. All eclipses in this series occurs at the Moon’s descending node.

Series members 28–50 occur between 1690 and 2100:
28	29	30
June 11, 1695	June 22, 1713	July 4, 1731
31	32	33
July 14, 1749	July 25, 1767	August 5, 1785
34	35	36
August 17, 1803	August 27, 1821	September 7, 1839
37	38	39
September 18, 1857	September 29, 1875	October 9, 1893
40	41	42
October 22, 1911	November 1, 1929	November 12, 1947
43	44	45
November 23, 1965	December 4, 1983	December 14, 2001
46	47	48
December 26, 2019	January 5, 2038	January 16, 2056
49	50
January 27, 2074	February 7, 2092

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.

Inex series members between 1901 and 2100:
January 3, 1908 (Saros 130)	December 13, 1936 (Saros 131)	November 23, 1965 (Saros 132)
November 3, 1994 (Saros 133)	October 14, 2023 (Saros 134)	September 22, 2052 (Saros 135)
September 3, 2081 (Saros 136)

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 11-12	June 30-July 1	April 17-19	February 4-5	November 22-23
114	116	118	120	122
September 12, 1931	June 30, 1935	April 19, 1939	February 4, 1943	November 23, 1946
124	126	128	130	132
September 12, 1950	June 30, 1954	April 19, 1958	February 5, 1962	November 23, 1965
134	136	138	140	142
September 11, 1969	June 30, 1973	April 18, 1977	February 4, 1981	November 22, 1984
144	146	148	150	152
September 11, 1988	June 30, 1992	April 17, 1996	February 5, 2000	November 23, 2003
154	156
September 11, 2007	July 1, 2011

Notes

1. Stoddard, L. G. ; Carson, D. G. (January 1967). SELENODETIC MEASUREMENTS FROM THE ANNULAR ECLIPSE OF 23 NOVEMBER 1965. Air Force Cambridge Research Laboratories. Archived from the original on 21 April 2016.

References

• Earth visibility chart and eclipse statistics Eclipse Predictions by Fred Espenak, NASA/GSFC
  • Google interactive map
  • Besselian elements