Solar eclipse of March 18, 1988

Last updated
Solar eclipse of March 18, 1988
SE1988Mar18T.png
Map
Type of eclipse
NatureTotal
Gamma 0.4188
Magnitude 1.0464
Maximum eclipse
Duration226 s (3 min 46 s)
Coordinates 20°42′N140°00′E / 20.7°N 140°E / 20.7; 140
Max. width of band169 km (105 mi)
Times (UTC)
Greatest eclipse1:58:56
References
Saros 139 (28 of 71)
Catalog # (SE5000) 9482

A total solar eclipse occurred at the Moon's ascending node of orbit between Thursday, March 17 and Friday, March 18, 1988, [1] with a magnitude of 1.0464. 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 only 1.1 days after perigee (on March 16, 1988, at 20:30 UTC), the Moon's apparent diameter was larger. [2]

Contents

Totality was visible in Indonesia and southern Philippines. A partial eclipse was visible for parts of South Asia, Southeast Asia, East Asia, Northeast Asia, Australia, and Alaska.

Observation

The tourism office of the General Santos City government in the Philippines promoted it as a big tourism event. Hordes of scientists, astronomers, journalists, TV crews and tourists from all over the globe observed the totality from there. Then President of the Philippines Corazon Aquino also joined in to experience the event. [3]

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. [4]

March 18, 1988 Solar Eclipse Times
EventTime (UTC)
First Penumbral External Contact1988 March 17 at 23:24:58.4 UTC
First Umbral External Contact1988 March 18 at 00:23:32.6 UTC
First Central Line1988 March 18 at 00:24:27.6 UTC
First Umbral Internal Contact1988 March 18 at 00:25:22.6 UTC
First Penumbral Internal Contact1988 March 18 at 01:38:59.5 UTC
Greatest Duration1988 March 18 at 01:57:26.1 UTC
Greatest Eclipse1988 March 18 at 01:58:56.4 UTC
Ecliptic Conjunction1988 March 18 at 02:03:15.6 UTC
Equatorial Conjunction1988 March 18 at 02:23:10.7 UTC
Last Penumbral Internal Contact1988 March 18 at 02:18:20.1 UTC
Last Umbral Internal Contact1988 March 18 at 03:32:16.8 UTC
Last Central Line1988 March 18 at 03:33:10.6 UTC
Last Umbral External Contact1988 March 18 at 03:34:04.3 UTC
Last Penumbral External Contact1988 March 18 at 04:32:47.6 UTC
March 18, 1988 Solar Eclipse Parameters
ParameterValue
Eclipse Magnitude1.04640
Eclipse Obscuration1.09496
Gamma0.41879
Sun Right Ascension23h51m32.0s
Sun Declination-00°55'03.0"
Sun Semi-Diameter16'04.1"
Sun Equatorial Horizontal Parallax08.8"
Moon Right Ascension23h50m42.6s
Moon Declination-00°32'52.0"
Moon Semi-Diameter16'33.4"
Moon Equatorial Horizontal Parallax1°00'45.8"
ΔT55.9 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 March 1988
March 3
Descending node (full moon)
 March 18
Ascending node (new moon)
Lunar eclipse chart close-1988Mar03.png SE1988Mar18T.png
Penumbral lunar eclipse
Lunar Saros 113		 Total solar eclipse
Solar Saros 139

Eclipses in 1988

Metonic

Tzolkinex

Half-Saros

Tritos

Solar Saros 139

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. [5]

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 139

This eclipse is a part of Saros series 139, repeating every 18 years, 11 days, and containing 71 events. The series started with a partial solar eclipse on May 17, 1501. It contains hybrid eclipses from August 11, 1627 through December 9, 1825 and total eclipses from December 21, 1843 through March 26, 2601. There are no annular eclipses in this set. The series ends at member 71 as a partial eclipse on July 3, 2763. 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 61 at 7 minutes, 29.22 seconds on July 16, 2186. This date is the longest solar eclipse computed between 4000 BC and AD 6000. [6] All eclipses in this series occur at the Moon’s ascending node of orbit. [7]

Series members 18–39 occur between 1801 and 2200:
181920
SE1807Nov29H.png
November 29, 1807		 SE1825Dec09H.png
December 9, 1825		 SE1843Dec21T.png
December 21, 1843
212223
SE1861Dec31T.png
December 31, 1861		 SE1880Jan11T.png
January 11, 1880		 SE1898Jan22T.png
January 22, 1898
242526
SE1916Feb03T.png
February 3, 1916 		SE1934Feb14T.png
February 14, 1934 		SE1952Feb25T.png
February 25, 1952
272829
SE1970Mar07T.png
March 7, 1970 		SE1988Mar18T.png
March 18, 1988 		SE2006Mar29T.png
March 29, 2006
303132
SE2024Apr08T.png
April 8, 2024 		SE2042Apr20T.png
April 20, 2042 		SE2060Apr30T.png
April 30, 2060
333435
SE2078May11T.png
May 11, 2078 		SE2096May22T.png
May 22, 2096 		SE2114Jun03T.png
June 3, 2114
363738
SE2132Jun13T.png
June 13, 2132 		SE2150Jun25T.png
June 25, 2150 		SE2168Jul05T.png
July 5, 2168
39
SE2186Jul16T.png
July 16, 2186

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 January 5, 1935 and August 11, 2018
January 4–5October 23–24August 10–12May 30–31March 18–19
111113115117119
SE1935Jan05P.png
January 5, 1935 		SE1942Aug12P.png
August 12, 1942 		SE1946May30P.png
May 30, 1946 		SE1950Mar18A.png
March 18, 1950
121123125127129
SE1954Jan05A.png
January 5, 1954 		SE1957Oct23T.png
October 23, 1957 		SE1961Aug11A.png
August 11, 1961 		SE1965May30T.png
May 30, 1965 		SE1969Mar18A.png
March 18, 1969
131133135137139
SE1973Jan04A.png
January 4, 1973 		SE1976Oct23T.png
October 23, 1976 		SE1980Aug10A.png
August 10, 1980 		SE1984May30A.png
May 30, 1984 		SE1988Mar18T.png
March 18, 1988
141143145147149
SE1992Jan04A.png
January 4, 1992 		SE1995Oct24T.png
October 24, 1995 		SE1999Aug11T.png
August 11, 1999 		SE2003May31A.png
May 31, 2003 		SE2007Mar19P.png
March 19, 2007
151153155
SE2011Jan04P.png
January 4, 2011 		SE2014Oct23P.png
October 23, 2014 		SE2018Aug11P.png
August 11, 2018

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 2200
SE1802Aug28A.png
August 28, 1802
(Saros 122)		 SE1813Jul27T.gif
July 27, 1813
(Saros 123)		 SE1824Jun26T.png
June 26, 1824
(Saros 124)		 SE1835May27A.gif
May 27, 1835
(Saros 125)		 SE1846Apr25H.gif
April 25, 1846
(Saros 126)
SE1857Mar25T.png
March 25, 1857
(Saros 127)		 SE1868Feb23A.gif
February 23, 1868
(Saros 128)		 SE1879Jan22A.gif
January 22, 1879
(Saros 129)		 SE1889Dec22T.png
December 22, 1889
(Saros 130)		 SE1900Nov22A.png
November 22, 1900
(Saros 131)
SE1911Oct22A.png
October 22, 1911
(Saros 132)		 SE1922Sep21T.png
September 21, 1922
(Saros 133)		 SE1933Aug21A.png
August 21, 1933
(Saros 134)		 SE1944Jul20A.png
July 20, 1944
(Saros 135)		 SE1955Jun20T.png
June 20, 1955
(Saros 136)
SE1966May20A.png
May 20, 1966
(Saros 137)		 SE1977Apr18A.png
April 18, 1977
(Saros 138)		 SE1988Mar18T.png
March 18, 1988
(Saros 139)		 SE1999Feb16A.png
February 16, 1999
(Saros 140)		 SE2010Jan15A.png
January 15, 2010
(Saros 141)
SE2020Dec14T.png
December 14, 2020
(Saros 142)		 SE2031Nov14H.png
November 14, 2031
(Saros 143)		 SE2042Oct14A.png
October 14, 2042
(Saros 144)		 SE2053Sep12T.png
September 12, 2053
(Saros 145)		 SE2064Aug12T.png
August 12, 2064
(Saros 146)
SE2075Jul13A.png
July 13, 2075
(Saros 147)		 SE2086Jun11T.png
June 11, 2086
(Saros 148)		 SE2097May11T.png
May 11, 2097
(Saros 149)		 Saros150 22van71 SE2108Apr11P.jpg
April 11, 2108
(Saros 150)		 Saros151 20van72 SE2119Mar11A.jpg
March 11, 2119
(Saros 151)
Saros152 19van70 SE2130Feb08T.jpg
February 8, 2130
(Saros 152)		 SE2141Jan08A.png
January 8, 2141
(Saros 153)		 Saros154 14van71 SE2151Dec08A.jpg
December 8, 2151
(Saros 154)		 Saros155 14van71 SE2162Nov07T.jpg
November 7, 2162
(Saros 155)		 Saros156 10van69 SE2173Oct07A.jpg
October 7, 2173
(Saros 156)
SE2184Sep04A.png
September 4, 2184
(Saros 157)		 Saros158 08van70 SE2195Aug05T.jpg
August 5, 2195
(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
SE1814Jul17T.png
July 17, 1814
(Saros 133)		 SE1843Jun27H.png
June 27, 1843
(Saros 134)		 SE1872Jun06A.gif
June 6, 1872
(Saros 135)
SE1901May18T.png
May 18, 1901
(Saros 136)		 SE1930Apr28H.png
April 28, 1930
(Saros 137)		 SE1959Apr08A.png
April 8, 1959
(Saros 138)
SE1988Mar18T.png
March 18, 1988
(Saros 139)		 SE2017Feb26A.png
February 26, 2017
(Saros 140)		 SE2046Feb05A.png
February 5, 2046
(Saros 141)
SE2075Jan16T.png
January 16, 2075
(Saros 142)		 SE2103Dec29A.png
December 29, 2103
(Saros 143)		 SE2132Dec07A.png
December 7, 2132
(Saros 144)
SE2161Nov17T.png
November 17, 2161
(Saros 145)		 SE2190Oct29H.png
October 29, 2190
(Saros 146)

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References

  1. ↑ "March 17–18, 1988 Total Solar Eclipse". timeanddate. Retrieved 9 August 2024.
  2. ↑ "Moon Distances for London, United Kingdom, England". timeanddate. Retrieved 9 August 2024.
  3. ↑ "Solar Eclipse Photos circa 1988 in GenSan". GenSan News Online Mag. Archived from the original on 10 March 2016.
  4. ↑ "Total Solar Eclipse of 1988 Mar 18". EclipseWise.com. Retrieved 9 August 2024.
  5. ↑ 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.
  6. ↑ Ten Millennium Catalog of Long Solar Eclipses, −3999 to +6000 (4000 BCE to 6000 CE) Fred Espenak.
  7. ↑ "NASA - Catalog of Solar Eclipses of Saros 139". eclipse.gsfc.nasa.gov.

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