An annular solar eclipse occurred at the Moon's descending node of orbit on Tuesday, November 23, 1965, with a magnitude of 0.9656. 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. Occurring about 6.3 days before apogee (on November 29, 1965, at 12:00 UTC), the Moon's apparent diameter was smaller.
Annularity was visible from the Soviet Union (today's eastern Turkmenistan, southern Uzbekistan and southwestern Tajikistan), Afghanistan, West Pakistan, India, China, Nepal (including the capital city Kathmandu), southwestern Sikkim (now merged with India), East Pakistan (today's Bangladesh), Union of Burma (today's Myanmar), 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. A partial eclipse was visible for most of Asia, Australia, and Oceania.
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.
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.
+November 23, 1965 Solar Eclipse Times Event Time (UTC) First Penumbral External Contact 1965 November 23 at 01:24:37.4 UTC First Umbral External Contact 1965 November 23 at 02:29:29.3 UTC First Central Line 1965 November 23 at 02:31:10.9 UTC First Umbral Internal Contact 1965 November 23 at 02:32:52.8 UTC First Penumbral Internal Contact 1965 November 23 at 03:52:46.9 UTC Equatorial Conjunction 1965 November 23 at 04:00:47.7 UTC Ecliptic Conjunction 1965 November 23 at 04:10:27.3 UTC Greatest Eclipse 1965 November 23 at 04:14:51.0 UTC Last Penumbral Internal Contact 1965 November 23 at 04:37:14.5 UTC Greatest Duration 1965 November 23 at 04:40:27.4 UTC Last Umbral Internal Contact 1965 November 23 at 05:56:56.0 UTC Last Central Line 1965 November 23 at 05:58:40.8 UTC Last Umbral External Contact 1965 November 23 at 06:00:25.4 UTC Last Penumbral External Contact 1965 November 23 at 07:05:17.0 UTC
+November 23, 1965 Solar Eclipse Parameters Parameter Value Eclipse Magnitude 0.96561 Eclipse Obscuration 0.93240 Gamma 0.39061 Sun Right Ascension 15h54m02.2s Sun Declination -20°17'39.6" Sun Semi-Diameter 16'11.9" Sun Equatorial Horizontal Parallax 08.9" Moon Right Ascension 15h54m30.7s Moon Declination -19°56'39.6" Moon Semi-Diameter 15'24.9" Moon Equatorial Horizontal Parallax 0°56'34.5" ΔT 36.5 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 1965 November 23Descending node (new moon) December 8Ascending node (full moon) Annular solar eclipseSolar Saros 132 Penumbral lunar eclipseLunar Saros 144
Related eclipses Eclipses in 1965 A total solar eclipse on May 30. A partial lunar eclipse on June 14. An annular solar eclipse on November 23. A penumbral lunar eclipse on December 8.
Metonic Preceded by: Solar eclipse of February 5, 1962 Followed by: Solar eclipse of September 11, 1969
Tzolkinex Preceded by: Solar eclipse of October 12, 1958 Followed by: Solar eclipse of January 4, 1973
Half-Saros Preceded by: Lunar eclipse of November 18, 1956 Followed by: Lunar eclipse of November 29, 1974
Tritos Preceded by: Solar eclipse of December 25, 1954 Followed by: Solar eclipse of October 23, 1976
Solar Saros 132 Preceded by: Solar eclipse of November 12, 1947 Followed by: Solar eclipse of December 4, 1983
Inex Preceded by: Solar eclipse of December 13, 1936 Followed by: Solar eclipse of November 3, 1994
Triad Preceded by: Solar eclipse of January 22, 1879 Followed by: Solar eclipse of September 22, 2052
Solar eclipses of 1964–1967
Saros 132
Metonic series
Tritos series
Inex series
Notes
References