Solar eclipse of November 12, 1966
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A total solar eclipse occurred at the Moon's descending node of orbit on Saturday, November 12, 1966,[1] with a magnitude of 1.0234. 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 total solar eclipse occurs when the Moon's apparent diameter is larger than the Sun's, blocking all direct sunlight, turning day into darkness. Totality occurs in a narrow path across Earth's surface, with the partial solar eclipse visible over a surrounding region thousands of kilometres wide. Occurring about 2.25 days after perigee (on November 10, 1966, at 8:40 UTC), the Moon's apparent diameter was larger.[2]
The path of totality cut a swath across South America from north of Lima, Peru, passing the northeastern tip of Chile, Bolivia, Northwest of Argentina, southwestern tip of Ñeembucú Department in Paraguay, nearly to the southernmost tip of Brazil. A partial eclipse was visible for parts of Central America, the Caribbean, South America, Antarctica, and Southern Africa.
Observations
The NASA Gemini XII mission observed this total eclipse from space:
The Canary Island controller greeted the crew in the morning with the news that there would be a second maneuver - 5 meters forward - to line the vehicles up properly. The prospects panned out richly, and the crew reported seeing the eclipse "right on the money at 16:01:44 g.e.t." Although the crew thought for a moment that they were slightly off track, their aim had actually been accurate.[3]
The 28 October 1966 launch of the U.S. Air Force's Orbiting Vehicle 3-2 (OV3-2) was timed such that it could observe ambient charged particle variations before, during, and after the eclipse.[4]
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.[5]
| Event | Time (UTC) |
|---|---|
| First Penumbral External Contact | 1966 November 12 at 11:43:29.6 UTC |
| First Umbral External Contact | 1966 November 12 at 12:43:07.1 UTC |
| First Central Line | 1966 November 12 at 12:43:20.6 UTC |
| First Umbral Internal Contact | 1966 November 12 at 12:43:34.2 UTC |
| First Penumbral Internal Contact | 1966 November 12 at 13:50:12.8 UTC |
| Greatest Eclipse | 1966 November 12 at 14:23:27.6 UTC |
| Greatest Duration | 1966 November 12 at 14:24:40.6 UTC |
| Ecliptic Conjunction | 1966 November 12 at 14:26:56.5 UTC |
| Equatorial Conjunction | 1966 November 12 at 14:37:07.7 UTC |
| Last Penumbral Internal Contact | 1966 November 12 at 14:56:22.2 UTC |
| Last Umbral Internal Contact | 1966 November 12 at 16:03:15.2 UTC |
| Last Central Line | 1966 November 12 at 16:03:26.4 UTC |
| Last Umbral External Contact | 1966 November 12 at 16:03:37.7 UTC |
| Last Penumbral External Contact | 1966 November 12 at 17:03:24.9 UTC |
| Parameter | Value |
|---|---|
| Eclipse Magnitude | 1.02336 |
| Eclipse Obscuration | 1.04727 |
| Gamma | −0.33001 |
| Sun Right Ascension | 15h09m12.8s |
| Sun Declination | -17°40'44.2" |
| Sun Semi-Diameter | 16'09.6" |
| Sun Equatorial Horizontal Parallax | 08.9" |
| Moon Right Ascension | 15h08m42.7s |
| Moon Declination | -17°59'03.2" |
| Moon Semi-Diameter | 16'16.8" |
| Moon Equatorial Horizontal Parallax | 0°59'44.7" |
| ΔT | 37.3 s |
Eclipse season
Script error: No such module "Labelled list hatnote". 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.
| October 29 Ascending node (full moon) |
November 12 Descending node (new moon) |
|---|---|
| File:Lunar eclipse chart close-1966Oct29.png | File:SE1966Nov12T.png |
| Penumbral lunar eclipse Lunar Saros 116 |
Total solar eclipse Solar Saros 142 |
Related eclipses
Eclipses in 1966
- A penumbral lunar eclipse on May 4.
- An annular solar eclipse on May 20.
- A penumbral lunar eclipse on October 29.
- A total solar eclipse on November 12.
Metonic
- Preceded by: Solar eclipse of January 25, 1963
- Followed by: Solar eclipse of August 31, 1970
Tzolkinex
- Preceded by: Solar eclipse of October 2, 1959
- Followed by: Solar eclipse of December 24, 1973
Half-Saros
- Preceded by: Lunar eclipse of November 7, 1957
- Followed by: Lunar eclipse of November 18, 1975
Tritos
- Preceded by: Solar eclipse of December 14, 1955
- Followed by: Solar eclipse of October 12, 1977
Solar Saros 142
- Preceded by: Solar eclipse of November 1, 1948
- Followed by: Solar eclipse of November 22, 1984
Inex
- Preceded by: Solar eclipse of December 2, 1937
- Followed by: Solar eclipse of October 24, 1995
Triad
- Preceded by: Solar eclipse of January 11, 1880
- Followed by: Solar eclipse of September 12, 2053
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.[6]
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 File:SE1964Jun10P.png Partial |
−1.1393 | 122 | December 4, 1964 File:SE1964Dec04P.png Partial |
1.1193 | |
| 127 | May 30, 1965 File:SE1965May30T.png Total |
−0.4225 | 132 | November 23, 1965 File:SE1965Nov23A.png Annular |
0.3906 | |
| 137 | May 20, 1966 File:SE1966May20A.png Annular |
0.3467 | 142 | November 12, 1966 File:SE1966Nov12T.png Total |
−0.33 | |
| 147 | May 9, 1967 File:SE1967May09P.png Partial |
1.1422 | 152 | November 2, 1967 File:SE1967Nov02T.png Total (non-central) |
1.0007 | |
Saros 142
This eclipse is a part of Saros series 142, repeating every 18 years, 11 days, and containing 72 events. The series started with a partial solar eclipse on April 17, 1624. It contains a hybrid eclipse on July 14, 1768, and total eclipses from July 25, 1786 through October 29, 2543. There are no annular eclipses in this set. The series ends at member 72 as a partial eclipse on June 5, 2904. 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 totality will be produced by member 38 at 6 minutes, 34 seconds on May 28, 2291. All eclipses in this series occur at the Moon’s descending node of orbit.[7]
| Series members 11–32 occur between 1801 and 2200: | ||
|---|---|---|
| 11 | 12 | 13 |
| File:SE1804Aug05T.png August 5, 1804 |
File:SE1822Aug16T.png August 16, 1822 |
File:SE1840Aug27T.png August 27, 1840 |
| 14 | 15 | 16 |
| File:SE1858Sep07T.png September 7, 1858 |
File:SE1876Sep17T.png September 17, 1876 |
File:SE1894Sep29T.png September 29, 1894 |
| 17 | 18 | 19 |
| File:SE1912Oct10T.png October 10, 1912 |
File:SE1930Oct21T.png October 21, 1930 |
File:SE1948Nov01T.png November 1, 1948 |
| 20 | 21 | 22 |
| File:SE1966Nov12T.png November 12, 1966 |
File:SE1984Nov22T.png November 22, 1984 |
File:SE2002Dec04T.png December 4, 2002 |
| 23 | 24 | 25 |
| File:SE2020Dec14T.png December 14, 2020 |
File:SE2038Dec26T.png December 26, 2038 |
File:SE2057Jan05T.png January 5, 2057 |
| 26 | 27 | 28 |
| File:SE2075Jan16T.png January 16, 2075 |
File:SE2093Jan27T.png January 27, 2093 |
File:SE2111Feb08T.png February 8, 2111 |
| 29 | 30 | 31 |
| File:SE2129Feb18T.png February 18, 2129 |
File:SE2147Mar02T.png March 2, 2147 |
File:SE2165Mar12T.png March 12, 2165 |
| 32 | ||
| File:SE2183Mar23T.png March 23, 2183 | ||
Metonic series
Template:Solar Metonic series 1902–1989
Tritos series
Template:Solar Tritos series 2010 July 11
Inex series
Template:Solar Inex series 2024 October 2
Notes
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References
- Earth visibility chart and eclipse statistics Eclipse Predictions by Fred Espenak, NASA/GSFC
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