Solar eclipse of March 7, 1989

Last updated
Solar eclipse of March 7, 1989
SE1989Mar07P.png
Map
Type of eclipse
NaturePartial
Gamma 1.0981
Magnitude 0.8268
Maximum eclipse
Coordinates 61°12′N169°48′W / 61.2°N 169.8°W / 61.2; -169.8
Times (UTC)
Greatest eclipse18:08:41
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.

Contents

A partial eclipse was visible for parts of Hawaii, Alaska, Canada, the western and central United States, northwest Mexico, and Greenland.

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. [2]

March 7, 1989 Solar Eclipse Times
EventTime (UTC)
First Penumbral External Contact1989 March 07 at 16:17:48.4 UTC
Greatest Eclipse1989 March 07 at 18:08:40.6 UTC
Ecliptic Conjunction1989 March 07 at 18:19:36.5 UTC
Equatorial Conjunction1989 March 07 at 19:09:59.8 UTC
Last Penumbral External Contact1989 March 07 at 19:59:06.7 UTC
March 7, 1989 Solar Eclipse Parameters
ParameterValue
Eclipse Magnitude0.82679
Eclipse Obscuration0.78906
Gamma1.09815
Sun Right Ascension23h12m43.3s
Sun Declination-05°04'32.2"
Sun Semi-Diameter16'06.8"
Sun Equatorial Horizontal Parallax08.9"
Moon Right Ascension23h10m35.2s
Moon Declination-04°05'29.6"
Moon Semi-Diameter16'41.7"
Moon Equatorial Horizontal Parallax1°01'16.5"
ΔT56.4 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.

Eclipse season of February–March 1989
February 20
Descending node (full moon)
 March 7
Ascending node (new moon)
Lunar eclipse chart close-1989Feb20.png SE1989Mar07P.png
Total lunar eclipse
Lunar Saros 123		 Partial solar eclipse
Solar Saros 149

Eclipses in 1989

Metonic

Tzolkinex

Half-Saros

Tritos

Solar Saros 149

Inex

Triad

Solar eclipses of 1986–1989

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
SarosMapGammaSarosMapGamma
119 April 9, 1986
SE1986Apr09P.png
Partial		−1.0822124 October 3, 1986
SE1986Oct03H.png
Hybrid		0.9931
129 March 29, 1987
SE1987Mar29H.png
Hybrid		−0.3053134 September 23, 1987
SE1987Sep23A.png
Annular		0.2787
139 March 18, 1988
SE1988Mar18T.png
Total		0.4188144 September 11, 1988
SE1988Sep11A.png
Annular		−0.4681
149 March 7, 1989
SE1989Mar07P.png
Partial		1.0981154 August 31, 1989
SE1989Aug31P.png
Partial		−1.1928

Saros 149

This eclipse is a part of Saros series 149, repeating every 18 years, 11 days, 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. [4]

Series members 9–30 occur between 1801 and 2200:
91011
SE1808Nov18P.gif
November 18, 1808		 SE1826Nov29P.gif
November 29, 1826		 SE1844Dec09P.gif
December 9, 1844
121314
SE1862Dec21P.gif
December 21, 1862		 SE1880Dec31P.gif
December 31, 1880		 SE1899Jan11P.gif
January 11, 1899
151617
SE1917Jan23P.png
January 23, 1917 		SE1935Feb03P.png
February 3, 1935 		SE1953Feb14P.png
February 14, 1953
181920
SE1971Feb25P.png
February 25, 1971 		SE1989Mar07P.png
March 7, 1989 		SE2007Mar19P.png
March 19, 2007
212223
SE2025Mar29P.png
March 29, 2025 		SE2043Apr09T.png
April 9, 2043 		SE2061Apr20T.png
April 20, 2061
242526
SE2079May01T.png
May 1, 2079 		SE2097May11T.png
May 11, 2097 		SE2115May24T.png
May 24, 2115
272829
SE2133Jun03T.png
June 3, 2133		 Saros149 28van71 SE2151Jun14T.jpg
June 14, 2151		 SE2169Jun25T.png
June 25, 2169
30
Saros149 30van71 SE2187Jul06T.jpg
July 6, 2187

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 ascending node.

22 eclipse events between December 24, 1916 and July 31, 2000
December 24–25October 12July 31–August 1May 19–20March 7
111113115117119
SE1916Dec24P.png
December 24, 1916 		SE1924Jul31P.png
July 31, 1924 		SE1928May19T.png
May 19, 1928 		SE1932Mar07A.png
March 7, 1932
121123125127129
SE1935Dec25A.png
December 25, 1935 		SE1939Oct12T.png
October 12, 1939 		SE1943Aug01A.png
August 1, 1943 		SE1947May20T.png
May 20, 1947 		SE1951Mar07A.png
March 7, 1951
131133135137139
SE1954Dec25A.png
December 25, 1954 		SE1958Oct12T.png
October 12, 1958 		SE1962Jul31A.png
July 31, 1962 		SE1966May20A.png
May 20, 1966 		SE1970Mar07T.png
March 7, 1970
141143145147149
SE1973Dec24A.png
December 24, 1973 		SE1977Oct12T.png
October 12, 1977 		SE1981Jul31T.png
July 31, 1981 		SE1985May19P.png
May 19, 1985 		SE1989Mar07P.png
March 7, 1989
151153155
SE1992Dec24P.png
December 24, 1992 		SE1996Oct12P.png
October 12, 1996 		SE2000Jul31P.png
July 31, 2000

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.

Series members between 1801 and 2087
SE1803Aug17A.png
August 17, 1803
(Saros 132)		 SE1814Jul17T.png
July 17, 1814
(Saros 133)		 SE1825Jun16H.png
June 16, 1825
(Saros 134)		 SE1836May15A.png
May 15, 1836
(Saros 135)		 SE1847Apr15T.png
April 15, 1847
(Saros 136)
SE1858Mar15A.png
March 15, 1858
(Saros 137)		 SE1869Feb11A.png
February 11, 1869
(Saros 138)		 SE1880Jan11T.png
January 11, 1880
(Saros 139)		 SE1890Dec12H.png
December 12, 1890
(Saros 140)		 SE1901Nov11A.png
November 11, 1901
(Saros 141)
SE1912Oct10T.png
October 10, 1912
(Saros 142)		 SE1923Sep10T.png
September 10, 1923
(Saros 143)		 SE1934Aug10A.png
August 10, 1934
(Saros 144)		 SE1945Jul09T.png
July 9, 1945
(Saros 145)		 SE1956Jun08T.png
June 8, 1956
(Saros 146)
SE1967May09P.png
May 9, 1967
(Saros 147)		 SE1978Apr07P.png
April 7, 1978
(Saros 148)		 SE1989Mar07P.png
March 7, 1989
(Saros 149)		 SE2000Feb05P.png
February 5, 2000
(Saros 150)		 SE2011Jan04P.png
January 4, 2011
(Saros 151)
SE2021Dec04T.png
December 4, 2021
(Saros 152)		 SE2032Nov03P.png
November 3, 2032
(Saros 153)		 SE2043Oct03A.png
October 3, 2043
(Saros 154)		 SE2054Sep02P.png
September 2, 2054
(Saros 155)		 SE2065Aug02P.png
August 2, 2065
(Saros 156)
SE2076Jul01P.png
July 1, 2076
(Saros 157)		 SE2087Jun01P.png
June 1, 2087
(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
SE1815Jul06T.png
July 6, 1815
(Saros 143)		 SE1844Jun16P.png
June 16, 1844
(Saros 144)		 SE1873May26P.png
May 26, 1873
(Saros 145)
SE1902May07P.png
May 7, 1902
(Saros 146)		 SE1931Apr18P.png
April 18, 1931
(Saros 147)		 SE1960Mar27P.png
March 27, 1960
(Saros 148)
SE1989Mar07P.png
March 7, 1989
(Saros 149)		 SE2018Feb15P.png
February 15, 2018
(Saros 150)		 SE2047Jan26P.png
January 26, 2047
(Saros 151)
SE2076Jan06T.png
January 6, 2076
(Saros 152)		 Saros153 14van70 SE2104Dec17A.jpg
December 17, 2104
(Saros 153)		 Saros154 13van71 SE2133Nov26A.jpg
November 26, 2133
(Saros 154)
Saros155 14van71 SE2162Nov07T.jpg
November 7, 2162
(Saros 155)		 Saros156 11van69 SE2191Oct18A.jpg
October 18, 2191
(Saros 156)

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References

  1. ↑ "March 7, 1989 Partial Solar Eclipse". timeanddate. Retrieved 9 August 2024.
  2. ↑ "Partial Solar Eclipse of 1989 Mar 07". EclipseWise.com. Retrieved 9 August 2024.
  3. ↑ van Gent, R.H. "Solar- and Lunar-Eclipse Predictions from Antiquity to the Present". A Catalogue of Eclipse Cycles. Utrecht University. Retrieved 6 October 2018.
  4. ↑ "NASA - Catalog of Solar Eclipses of Saros 149". eclipse.gsfc.nasa.gov.
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