Solar eclipse of March 7, 1989
| Partial eclipse | |
| Gamma | 1.0981 |
|---|---|
| Magnitude | 0.8268 |
| Maximum eclipse | |
| Coordinates | Lua error: callParserFunction: function "#coordinates" was not found. |
| Times (UTC) | |
| Greatest eclipse | 18:08:41 |
| References | |
| Saros | 149 (19 of 71) |
| Catalog # (SE5000) | 9484 |
A partial solar eclipse occurred at the Moon's ascending node of orbit on Tuesday, March 7, 1989,[1] with a magnitude of 0.8268. 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.
A partial eclipse was visible for parts of Hawaii, Alaska, Canada, the western and central United States, northwest Mexico, and Greenland.
Eclipse timing
[edit | edit source]Places experiencing partial eclipse
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Eclipse details
[edit | edit source]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.[2]
| Event | Time (UTC) |
|---|---|
| First penumbral external contact | 1989 March 7 at 16:17:48.4 UTC |
| Greatest eclipse | 1989 March 7 at 18:08:40.6 UTC |
| Ecliptic conjunction | 1989 March 7 at 18:19:36.5 UTC |
| Equatorial conjunction | 1989 March 7 at 19:09:59.8 UTC |
| Last penumbral external contact | 1989 March 7 at 19:59:06.7 UTC |
| Parameter | Value |
|---|---|
| Eclipse magnitude | 0.82679 |
| Eclipse obscuration | 0.78906 |
| Gamma | 1.09815 |
| Sun right ascension | 23h12m43.3s |
| Sun declination | -05°04'32.2" |
| Sun semi-diameter | 16'06.8" |
| Sun equatorial horizontal parallax | 08.9" |
| Moon right ascension | 23h10m35.2s |
| Moon declination | -04°05'29.6" |
| Moon semi-diameter | 16'41.7" |
| Moon equatorial horizontal parallax | 1°01'16.5" |
| ΔT | 56.4 s |
Eclipse season
[edit | edit source]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.
| February 20 Descending node (full moon) |
March 7 Ascending node (new moon) |
|---|---|
| File:Lunar eclipse chart close-1989Feb20.png | File:SE1989Mar07P.png |
| Total lunar eclipse Lunar Saros 123 |
Partial solar eclipse Solar Saros 149 |
Related eclipses
[edit | edit source]Eclipses in 1989
[edit | edit source]- A total lunar eclipse on February 20
- A partial solar eclipse on March 7
- A total lunar eclipse on August 17
- A partial solar eclipse on August 31
Metonic
[edit | edit source]- Preceded by: Solar eclipse of May 19, 1985
- Followed by: Solar eclipse of December 24, 1992
Tzolkinex
[edit | edit source]- Preceded by: Solar eclipse of January 25, 1982
- Followed by: Solar eclipse of April 17, 1996
Half-Saros
[edit | edit source]- Preceded by: Lunar eclipse of March 1, 1980
- Followed by: Lunar eclipse of March 13, 1998
Tritos
[edit | edit source]- Preceded by: Solar eclipse of April 7, 1978
- Followed by: Solar eclipse of February 5, 2000
Solar Saros 149
[edit | edit source]- Preceded by: Solar eclipse of February 25, 1971
- Followed by: Solar eclipse of March 19, 2007
Inex
[edit | edit source]- Preceded by: Solar eclipse of March 27, 1960
- Followed by: Solar eclipse of February 15, 2018
Triad
[edit | edit source]- Preceded by: Solar eclipse of May 7, 1902
- Followed by: Solar eclipse of January 6, 2076
Solar eclipses of 1986–1989
[edit | edit source]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.[3]
| Solar eclipse series sets from 1986 to 1989 | ||||||
|---|---|---|---|---|---|---|
| Ascending node | Descending node | |||||
| Saros | Map | Gamma | Saros | Map | Gamma | |
| 119 | April 9, 1986 File:SE1986Apr09P.png Partial |
−1.0822 | 124 | October 3, 1986 File:SE1986Oct03H.png Hybrid |
0.9931 | |
| 129 | March 29, 1987 File:SE1987Mar29H.png Hybrid |
−0.3053 | 134 | September 23, 1987 File:SE1987Sep23A.png Annular |
0.2787 | |
| 139 | March 18, 1988 File:SE1988Mar18T.png Total |
0.4188 | 144 | September 11, 1988 File:SE1988Sep11A.png Annular |
−0.4681 | |
| 149 | March 7, 1989 File:SE1989Mar07P.png Partial |
1.0981 | 154 | August 31, 1989 File:SE1989Aug31P.png Partial |
−1.1928 | |
Saros 149
[edit | edit source]This eclipse is a part of Saros series 149, repeating every 18 years, 11 days, 8 hours [4] and containing 71 events. The series started with a partial solar eclipse on August 21, 1664. It contains total eclipses from April 9, 2043 through October 2, 2331; hybrid eclipses from October 13, 2349 through November 3, 2385; and annular eclipses from November 15, 2403 through July 13, 2800. The series ends at member 71 as a partial eclipse on September 28, 2926. 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 31 at 4 minutes, 10 seconds on July 17, 2205, and the longest duration of annularity will be produced by member 62 at 5 minutes, 6 seconds on June 21, 2764. All eclipses in this series occur at the Moon’s ascending node of orbit.[5]
| Series members 9–30 occur between 1801 and 2200: | ||
|---|---|---|
| 9 | 10 | 11 |
| File:SE1808Nov18P.gif November 18, 1808 |
File:SE1826Nov29P.gif November 29, 1826 |
File:SE1844Dec09P.gif December 9, 1844 |
| 12 | 13 | 14 |
| File:SE1862Dec21P.gif December 21, 1862 |
File:SE1880Dec31P.gif December 31, 1880 |
File:SE1899Jan11P.gif January 11, 1899 |
| 15 | 16 | 17 |
| File:SE1917Jan23P.png January 23, 1917 |
File:SE1935Feb03P.png February 3, 1935 |
File:SE1953Feb14P.png February 14, 1953 |
| 18 | 19 | 20 |
| File:SE1971Feb25P.png February 25, 1971 |
File:SE1989Mar07P.png March 7, 1989 |
File:SE2007Mar19P.png March 19, 2007 |
| 21 | 22 | 23 |
| File:SE2025Mar29P.png March 29, 2025 |
File:SE2043Apr09T.png April 9, 2043 |
File:SE2061Apr20T.png April 20, 2061 |
| 24 | 25 | 26 |
| File:SE2079May01T.png May 1, 2079 |
File:SE2097May11T.png May 11, 2097 |
File:SE2115May24T.png May 24, 2115 |
| 27 | 28 | 29 |
| File:SE2133Jun03T.png June 3, 2133 |
File:Saros149 28van71 SE2151Jun14T.jpg June 14, 2151 |
File:SE2169Jun25T.png June 25, 2169 |
| 30 | ||
| File:Saros149 30van71 SE2187Jul06T.jpg July 6, 2187 | ||
Metonic series
[edit | edit source]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 ascending node.
Tritos series
[edit | edit source]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.
Inex series
[edit | edit source]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:SE1815Jul06T.png July 6, 1815 (Saros 143) |
File:SE1844Jun16P.png June 16, 1844 (Saros 144) |
File:SE1873May26P.png May 26, 1873 (Saros 145) |
| File:SE1902May07P.png May 7, 1902 (Saros 146) |
File:SE1931Apr18P.png April 18, 1931 (Saros 147) |
File:SE1960Mar27P.png March 27, 1960 (Saros 148) |
| File:SE1989Mar07P.png March 7, 1989 (Saros 149) |
File:SE2018Feb15P.png February 15, 2018 (Saros 150) |
File:SE2047Jan26P.png January 26, 2047 (Saros 151) |
| File:SE2076Jan06T.png January 6, 2076 (Saros 152) |
File:Saros153 14van70 SE2104Dec17A.jpg December 17, 2104 (Saros 153) |
File:Saros154 13van71 SE2133Nov26A.jpg November 26, 2133 (Saros 154) |
| File:Saros155 14van71 SE2162Nov07T.jpg November 7, 2162 (Saros 155) |
File:Saros156 11van69 SE2191Oct18A.jpg October 18, 2191 (Saros 156) |
|
Notes
[edit | edit source]References
[edit | edit source]- ^ a b Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
External links
[edit | edit source]- Earth visibility chart and eclipse statistics Eclipse Predictions by Fred Espenak, NASA/GSFC
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