Solar eclipse of December 4, 1983
Template:Short description Script error: No such module "Solar eclipse". An annular solar eclipse occurred at the Moon's descending node of orbit on Sunday, December 4, 1983,[1] with a magnitude of 0.9666. 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 6.5 days before apogee (on December 11, 1983, at 12:30 UTC), the Moon's apparent diameter was smaller.[2]
Annularity was visible in Cape Verde, Annobón Island of Equatorial Guinea, Gabon, the People's Republic of Congo (today's Republic of Congo), Zaire (today's Democratic Republic of Congo), northern Uganda, southern Sudan (today's South Sudan), northwestern Kenya, Ethiopia and Somalia. A partial eclipse was visible for parts of northern South America, Southern Europe, Africa, and the Middle East.
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.[3]
| Event | Time (UTC) |
|---|---|
| First Penumbral External Contact | 1983 December 4 at 09:41:52.5 UTC |
| First Umbral External Contact | 1983 December 4 at 10:46:44.4 UTC |
| First Central Line | 1983 December 4 at 10:48:24.1 UTC |
| First Umbral Internal Contact | 1983 December 4 at 10:50:04.1 UTC |
| First Penumbral Internal Contact | 1983 December 4 at 12:11:46.8 UTC |
| Equatorial Conjunction | 1983 December 4 at 12:20:29.0 UTC |
| Ecliptic Conjunction | 1983 December 4 at 12:26:45.1 UTC |
| Greatest Eclipse | 1983 December 4 at 12:31:15.1 UTC |
| Last Penumbral Internal Contact | 1983 December 4 at 12:50:58.3 UTC |
| Greatest Duration | 1983 December 4 at 12:51:39.2 UTC |
| Last Umbral Internal Contact | 1983 December 4 at 14:12:31.0 UTC |
| Last Central Line | 1983 December 4 at 14:14:13.9 UTC |
| Last Umbral External Contact | 1983 December 4 at 14:15:56.6 UTC |
| Last Penumbral External Contact | 1983 December 4 at 15:20:48.9 UTC |
| Parameter | Value |
|---|---|
| Eclipse Magnitude | 0.96656 |
| Eclipse Obscuration | 0.93425 |
| Gamma | 0.40150 |
| Sun Right Ascension | 16h41m03.6s |
| Sun Declination | -22°12'07.8" |
| Sun Semi-Diameter | 16'13.7" |
| Sun Equatorial Horizontal Parallax | 08.9" |
| Moon Right Ascension | 16h41m26.3s |
| Moon Declination | -21°50'01.7" |
| Moon Semi-Diameter | 15'27.6" |
| Moon Equatorial Horizontal Parallax | 0°56'44.4" |
| ΔT | 53.7 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.
| December 4 Descending node (new moon) |
December 20 Ascending node (full moon) |
|---|---|
| File:SE1983Dec04A.png | File:Lunar eclipse chart close-1983Dec20.png |
| Annular solar eclipse Solar Saros 132 |
Penumbral lunar eclipse Lunar Saros 144 |
Related eclipses
Eclipses in 1983
- A total solar eclipse on June 11.
- A partial lunar eclipse on June 25.
- An annular solar eclipse on December 4.
- A penumbral lunar eclipse on December 20.
Metonic
- Preceded by: Solar eclipse of February 16, 1980
- Followed by: Solar eclipse of September 23, 1987
Tzolkinex
- Preceded by: Solar eclipse of October 23, 1976
- Followed by: Solar eclipse of January 15, 1991
Half-Saros
- Preceded by: Lunar eclipse of November 29, 1974
- Followed by: Lunar eclipse of December 9, 1992
Tritos
- Preceded by: Solar eclipse of January 4, 1973
- Followed by: Solar eclipse of November 3, 1994
Solar Saros 132
- Preceded by: Solar eclipse of November 23, 1965
- Followed by: Solar eclipse of December 14, 2001
Inex
- Preceded by: Solar eclipse of December 25, 1954
- Followed by: Solar eclipse of November 13, 2012
Triad
- Preceded by: Solar eclipse of February 1, 1897
- Followed by: Solar eclipse of October 4, 2070
Solar eclipses of 1982–1985
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.[4]
The partial solar eclipses on January 25, 1982 and July 20, 1982 occur in the previous lunar year eclipse set.
| Solar eclipse series sets from 1982 to 1985 | ||||||
|---|---|---|---|---|---|---|
| Ascending node | Descending node | |||||
| Saros | Map | Gamma | Saros | Map | Gamma | |
| 117 | June 21, 1982 File:SE1982Jun21P.png Partial |
−1.2102 | 122 | December 15, 1982 File:SE1982Dec15P.png Partial |
1.1293 | |
| 127 | June 11, 1983 File:SE1983Jun11T.png Total |
−0.4947 | 132 | December 4, 1983 File:SE1983Dec04A.png Annular |
0.4015 | |
| 137 | May 30, 1984 File:SE1984May30A.png Annular |
0.2755 | 142 File:Solar eclipse of 22 November 1984.JPG Partial in Gisborne, New Zealand |
November 22, 1984 File:SE1984Nov22T.png Total |
−0.3132 | |
| 147 | May 19, 1985 File:SE1985May19P.png Partial |
1.072 | 152 | November 12, 1985 File:SE1985Nov12T.png Total |
−0.9795 | |
Saros 132
This eclipse is a part of Saros series 132, repeating every 18 years, 11 days, and containing 71 events. The series started with a partial solar eclipse on August 13, 1208. It contains annular eclipses from March 17, 1569 through March 12, 2146; hybrid eclipses on March 23, 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. 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 annularity was produced by member 25 at 6 minutes, 56 seconds on May 9, 1641, and the longest duration of totality will be produced by member 61 at 2 minutes, 14 seconds on June 8, 2290. All eclipses in this series occur at the Moon’s descending node of orbit.[5]
| Series members 34–56 occur between 1801 and 2200: | |||
|---|---|---|---|
| 34 | 35 | 36 | |
| File:SE1803Aug17A.png August 17, 1803 |
File:SE1821Aug27A.png August 27, 1821 |
File:SE1839Sep07A.png September 7, 1839 | |
| 37 | 38 | 39 | |
| File:SE1857Sep18A.png September 18, 1857 |
File:SE1875Sep29A.png September 29, 1875 |
File:SE1893Oct09A.png October 9, 1893 | |
| 40 | 41 | 42 | |
| File:SE1911Oct22A.png October 22, 1911 |
File:SE1929Nov01A.png November 1, 1929 |
File:SE1947Nov12A.png November 12, 1947 | |
| 43 | 44 | 45 | |
| File:SE1965Nov23A.png November 23, 1965 |
File:SE1983Dec04A.png December 4, 1983 |
File:SE2001Dec14A.png December 14, 2001 | |
| 46 | 47 | 48 | |
| File:SE2019Dec26A.png December 26, 2019 |
File:SE2038Jan05A.png January 5, 2038 |
File:SE2056Jan16A.png January 16, 2056 | |
| 49 | 50 | 51 | |
| File:SE2074Jan27A.png January 27, 2074 |
File:SE2092Feb07A.png February 7, 2092 |
File:SE2110Feb18A.png February 18, 2110 | |
| 52 | 53 | 54 | |
| File:SE2128Mar01A.png March 1, 2128 |
File:SE2146Mar12A.png March 12, 2146 |
File:SE2164Mar23H.png March 23, 2164 | |
| 55 | 56 | ||
| File:SE2182Apr03H.png April 3, 2182 |
File:SE2200Apr14T.png April 14, 2200 | ||
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.
| 21 eclipse events between July 11, 1953 and July 11, 2029 | ||||
|---|---|---|---|---|
| July 10–11 | April 29–30 | February 15–16 | December 4 | September 21–23 |
| 116 | 118 | 120 | 122 | 124 |
| File:SE1953Jul11P.png July 11, 1953 |
File:SE1957Apr30A.png April 30, 1957 |
File:SE1961Feb15T.png February 15, 1961 |
File:SE1964Dec04P.png December 4, 1964 |
File:SE1968Sep22T.png September 22, 1968 |
| 126 | 128 | 130 | 132 | 134 |
| File:SE1972Jul10T.png July 10, 1972 |
File:SE1976Apr29A.png April 29, 1976 |
File:SE1980Feb16T.png February 16, 1980 |
File:SE1983Dec04A.png December 4, 1983 |
File:SE1987Sep23A.png September 23, 1987 |
| 136 | 138 | 140 | 142 | 144 |
| File:SE1991Jul11T.png July 11, 1991 |
File:SE1995Apr29A.png April 29, 1995 |
File:SE1999Feb16A.png February 16, 1999 |
File:SE2002Dec04T.png December 4, 2002 |
File:SE2006Sep22A.png September 22, 2006 |
| 146 | 148 | 150 | 152 | 154 |
| File:SE2010Jul11T.png July 11, 2010 |
File:SE2014Apr29A.png April 29, 2014 |
File:SE2018Feb15P.png February 15, 2018 |
File:SE2021Dec04T.png December 4, 2021 |
File:SE2025Sep21P.png September 21, 2025 |
| 156 | ||||
| File:SE2029Jul11P.png July 11, 2029 | ||||
Tritos series
Template:Solar Tritos series 2005 October 3
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.
| Series members between 1801 and 2200 | ||
|---|---|---|
| File:SE1810Apr04A.gif April 4, 1810 (Saros 126) |
File:SE1839Mar15T.gif March 15, 1839 (Saros 127) |
File:SE1868Feb23A.gif February 23, 1868 (Saros 128) |
| File:SE1897Feb01A.gif February 1, 1897 (Saros 129) |
File:SE1926Jan14T.png January 14, 1926 (Saros 130) |
File:SE1954Dec25A.png December 25, 1954 (Saros 131) |
| File:SE1983Dec04A.png December 4, 1983 (Saros 132) |
File:SE2012Nov13T.png November 13, 2012 (Saros 133) |
File:SE2041Oct25A.png October 25, 2041 (Saros 134) |
| File:SE2070Oct04A.png October 4, 2070 (Saros 135) |
File:SE2099Sep14T.png September 14, 2099 (Saros 136) |
File:SE2128Aug25A.png August 25, 2128 (Saros 137) |
| File:SE2157Aug05A.png August 5, 2157 (Saros 138) |
File:SE2186Jul16T.png July 16, 2186 (Saros 139) |
|
Notes
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References
- Earth visibility chart and eclipse statistics Eclipse Predictions by Fred Espenak, NASA/GSFC
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