Solar eclipse of November 23, 1965

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. 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.

Eclipses in 1965

 * A total solar eclipse on May 30, 1965.
 * A partial lunar eclipse on June 14, 1965.
 * An annular solar eclipse on November 23, 1965.
 * A penumbral lunar eclipse on December 8, 1965.

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