Solar eclipse of January 25, 1982
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A partial solar eclipse occurred at the Moon's descending node of orbit on Monday, January 25, 1982, with a magnitude of 0.5663. 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 partial solar eclipse occurs in the polar regions of the Earth when the center of the Moon's shadow misses the Earth.
This was the first of four partial solar eclipses in 1982, with the others occurring on June 21, July 20, and December 15.
A partial eclipse was visible for parts of Antarctica and New Zealand.
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.
| Event | Time (UTC) |
|---|---|
| First Penumbral External Contact | 1982 January 25 at 02:50:39.8 UTC |
| Equatorial Conjunction | 1982 January 25 at 04:21:56.3 UTC |
| Greatest Eclipse | 1982 January 25 at 04:42:53.2 UTC |
| Ecliptic Conjunction | 1982 January 25 at 04:56:48.6 UTC |
| Last Penumbral External Contact | 1982 January 25 at 06:35:11.3 UTC |
| Parameter | Value |
|---|---|
| Eclipse Magnitude | 0.56631 |
| Eclipse Obscuration | 0.45424 |
| Gamma | −1.23110 |
| Sun Right Ascension | 20h28m55.5s |
| Sun Declination | -19°02'44.2" |
| Sun Semi-Diameter | 16'14.7" |
| Sun Equatorial Horizontal Parallax | 08.9" |
| Moon Right Ascension | 20h29m37.5s |
| Moon Declination | -20°09'51.6" |
| Moon Semi-Diameter | 15'03.4" |
| Moon Equatorial Horizontal Parallax | 0°55'15.6" |
| ΔT | 52.2 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.
| January 9 Ascending node (full moon) | January 25 Descending node (new moon) |
|---|---|
| Total lunar eclipse Lunar Saros 124 | Partial solar eclipse Solar Saros 150 |
Related eclipses
Eclipses in 1982
- A total lunar eclipse on January 9.
- A partial solar eclipse on January 25.
- A partial solar eclipse on June 21.
- A total lunar eclipse on July 6.
- A partial solar eclipse on July 20.
- A partial solar eclipse on December 15.
- A total lunar eclipse on December 30.
Metonic
- Preceded by: Solar eclipse of April 7, 1978
- Followed by: Solar eclipse of November 12, 1985
Tzolkinex
- Preceded by: Solar eclipse of December 13, 1974
- Followed by: Solar eclipse of March 7, 1989
Half-Saros
- Preceded by: Lunar eclipse of January 18, 1973
- Followed by: Lunar eclipse of January 30, 1991
Tritos
- Preceded by: Solar eclipse of February 25, 1971
- Followed by: Solar eclipse of December 24, 1992
Solar Saros 150
- Preceded by: Solar eclipse of January 14, 1964
- Followed by: Solar eclipse of February 5, 2000
Inex
- Preceded by: Solar eclipse of February 14, 1953
- Followed by: Solar eclipse of January 4, 2011
Triad
- Preceded by: Solar eclipse of March 26, 1895
- Followed by: Solar eclipse of November 24, 2068
Solar eclipses of 1979–1982
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.
The partial solar eclipses on June 21, 1982 and December 15, 1982 occur in the next lunar year eclipse set.
| Solar eclipse series sets from 1979 to 1982 | |||||
|---|---|---|---|---|---|
| Descending node | Ascending node | ||||
| Saros | Map | Gamma | Saros | Map | Gamma |
| 120 Totality in Brandon, MB, Canada | February 26, 1979 Total | 0.8981 | 125 | August 22, 1979 Annular | −0.9632 |
| 130 | February 16, 1980 Total | 0.2224 | 135 | August 10, 1980 Annular | −0.1915 |
| 140 | February 4, 1981 Annular | −0.4838 | 145 | July 31, 1981 Total | 0.5792 |
| 150 | January 25, 1982 Partial | −1.2311 | 155 | July 20, 1982 Partial | 1.2886 |
Saros 150
This eclipse is a part of Saros series 150, repeating every 18 years, 11 days, and containing 71 events. The series started with a partial solar eclipse on August 24, 1729. It contains annular eclipses from April 22, 2126 through June 22, 2829. There are no hybrid or total eclipses in this set. The series ends at member 71 as a partial eclipse on September 29, 2991. 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 will be produced by member 45 at 9 minutes, 58 seconds on December 19, 2522. All eclipses in this series occur at the Moon’s descending node of orbit.
| Series members 5–27 occur between 1801 and 2200: | ||
|---|---|---|
| 5 | 6 | 7 |
| October 7, 1801 | October 19, 1819 | October 29, 1837 |
| 8 | 9 | 10 |
| November 9, 1855 | November 20, 1873 | December 1, 1891 |
| 11 | 12 | 13 |
| December 12, 1909 | December 24, 1927 | January 3, 1946 |
| 14 | 15 | 16 |
| January 14, 1964 | January 25, 1982 | February 5, 2000 |
| 17 | 18 | 19 |
| February 15, 2018 | February 27, 2036 | March 9, 2054 |
| 20 | 21 | 22 |
| March 19, 2072 | March 31, 2090 | April 11, 2108 |
| 23 | 24 | 25 |
| April 22, 2126 | May 3, 2144 | May 14, 2162 |
| 26 | 27 | |
| May 24, 2180 | June 4, 2198 |
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.
| 22 eclipse events between April 8, 1902 and August 31, 1989 | ||||
|---|---|---|---|---|
| April 7–8 | January 24–25 | November 12 | August 31–September 1 | June 19–20 |
| 108 | 110 | 112 | 114 | 116 |
| April 8, 1902 | August 31, 1913 | June 19, 1917 | ||
| 118 | 120 | 122 | 124 | 126 |
| April 8, 1921 | January 24, 1925 | November 12, 1928 | August 31, 1932 | June 19, 1936 |
| 128 | 130 | 132 | 134 | 136 |
| April 7, 1940 | January 25, 1944 | November 12, 1947 | September 1, 1951 | June 20, 1955 |
| 138 | 140 | 142 | 144 | 146 |
| April 8, 1959 | January 25, 1963 | November 12, 1966 | August 31, 1970 | June 20, 1974 |
| 148 | 150 | 152 | 154 | |
| April 7, 1978 | January 25, 1982 | November 12, 1985 | August 31, 1989 |
Tritos series
This eclipse is a part of a tritos cycle, repeating at alternating nodes every 135 synodic months (≈ 3986.63 days, or 11 years minus 1 month). Their appearance and longitude are irregular due to a lack of synchronization with the anomalistic month (period of perigee), but groupings of 3 tritos cycles (≈ 33 years minus 3 months) come close (≈ 434.044 anomalistic months), so eclipses are similar in these groupings.
The partial solar eclipses on November 16, 2134 (part of Saros 164) and October 16, 2145 (part of Saros 165) are also a part of this series but are not included in the table below.
| Series members between 1801 and 2069 | ||||
|---|---|---|---|---|
| June 6, 1807 (Saros 134) | May 5, 1818 (Saros 135) | April 3, 1829 (Saros 136) | March 4, 1840 (Saros 137) | February 1, 1851 (Saros 138) |
| December 31, 1861 (Saros 139) | November 30, 1872 (Saros 140) | October 30, 1883 (Saros 141) | September 29, 1894 (Saros 142) | August 30, 1905 (Saros 143) |
| July 30, 1916 (Saros 144) | June 29, 1927 (Saros 145) | May 29, 1938 (Saros 146) | April 28, 1949 (Saros 147) | March 27, 1960 (Saros 148) |
| February 25, 1971 (Saros 149) | January 25, 1982 (Saros 150) | December 24, 1992 (Saros 151) | November 23, 2003 (Saros 152) | October 23, 2014 (Saros 153) |
| September 21, 2025 (Saros 154) | August 21, 2036 (Saros 155) | July 22, 2047 (Saros 156) | June 21, 2058 (Saros 157) | May 20, 2069 (Saros 158) |
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 | ||
|---|---|---|
| May 25, 1808 (Saros 144) | May 4, 1837 (Saros 145) | April 15, 1866 (Saros 146) |
| March 26, 1895 (Saros 147) | March 5, 1924 (Saros 148) | February 14, 1953 (Saros 149) |
| January 24, 1982 (Saros 150) | January 4, 2011 (Saros 151) | December 15, 2039 (Saros 152) |
| November 24, 2068 (Saros 153) | November 4, 2097 (Saros 154) | October 16, 2126 (Saros 155) |
| September 26, 2155 (Saros 156) | September 4, 2184 (Saros 157) |
External links
- Eclipse Predictions by Fred Espenak, NASA/GSFC