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. 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, the Moon's apparent diameter was smaller.
Annularity was visible from the Soviet Union, Afghanistan, West Pakistan, India, China, Nepal, southwestern Sikkim, East Pakistan, Union of Burma, southwestern tip of Sainyabuli Province in Laos, Cambodia, South Vietnam, Spratly Islands, Brunei, Malaysia, Indonesia, the Territory of Papua New Guinea, and Gilbert and Ellice Islands. 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.
EventTime
First Penumbral External Contact1965 November 23 at 01:24:37.4 UTC
First Umbral External Contact1965 November 23 at 02:29:29.3 UTC
First Central Line1965 November 23 at 02:31:10.9 UTC
First Umbral Internal Contact1965 November 23 at 02:32:52.8 UTC
First Penumbral Internal Contact1965 November 23 at 03:52:46.9 UTC
Equatorial Conjunction1965 November 23 at 04:00:47.7 UTC
Ecliptic Conjunction1965 November 23 at 04:10:27.3 UTC
Greatest Eclipse1965 November 23 at 04:14:51.0 UTC
Last Penumbral Internal Contact1965 November 23 at 04:37:14.5 UTC
Greatest Duration1965 November 23 at 04:40:27.4 UTC
Last Umbral Internal Contact1965 November 23 at 05:56:56.0 UTC
Last Central Line1965 November 23 at 05:58:40.8 UTC
Last Umbral External Contact1965 November 23 at 06:00:25.4 UTC
Last Penumbral External Contact1965 November 23 at 07:05:17.0 UTC

ParameterValue
Eclipse Magnitude0.96561
Eclipse Obscuration0.93240
Gamma0.39061
Sun Right Ascension15h54m02.2s
Sun Declination-20°17'39.6"
Sun Semi-Diameter16'11.9"
Sun Equatorial Horizontal Parallax08.9"
Moon Right Ascension15h54m30.7s
Moon Declination-19°56'39.6"
Moon Semi-Diameter15'24.9"
Moon Equatorial Horizontal Parallax0°56'34.5"
ΔT36.5 s

Eclipse season

This eclipse is part of an eclipse season, a period, roughly every six months, when eclipses occur. Only two eclipse seasons occur each year, and each season lasts about 35 days and repeats just short of six months 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.
November 23
Descending node
December 8
Ascending node
Annular solar eclipse
Solar Saros 132		Penumbral lunar eclipse
Lunar Saros 144

Related eclipses

Eclipses in 1965

Metonic

Tzolkinex

Half-Saros

Tritos

Solar Saros 132

Inex

Triad