Solar eclipse of September 11, 1988

Last updated
Solar eclipse of September 11, 1988
SE1988Sep11A.png
Map
Type of eclipse
NatureAnnular
Gamma −0.4681
Magnitude 0.9377
Maximum eclipse
Duration417 s (6 min 57 s)
Coordinates 20°00′S94°24′E / 20°S 94.4°E / -20; 94.4
Max. width of band258 km (160 mi)
Times (UTC)
Greatest eclipse4:44:29
References
Saros 144 (15 of 70)
Catalog # (SE5000) 9483

An annular solar eclipse occurred at the Moon's descending node of orbit on Sunday, September 11, 1988, with a magnitude of 0.9377. 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. Annularity was visible in southeastern Somalia (including the capital city Mogadishu), the Indian Ocean and Macquarie Island of Australia.

Contents

Eclipses in 1988

Metonic

Tzolkinex

Half-Saros

Tritos

Solar Saros 144

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. [1]

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 144

This eclipse is a part of Saros series 144, repeating every 18 years, 11 days, and containing 70 events. The series started with a partial solar eclipse on April 11, 1736. It contains annular eclipses from July 7, 1880 through August 27, 2565. There are no hybrid or total eclipses in this set. The series ends at member 70 as a partial eclipse on May 5, 2980. 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 51 at 9 minutes, 52 seconds on December 29, 2168. All eclipses in this series occur at the Moon’s descending node of orbit. [2]

Series members 5–26 occur between 1801 and 2200:
567
SE1808May25P.png
May 25, 1808
SE1826Jun05P.png
June 5, 1826
SE1844Jun16P.png
June 16, 1844
8910
SE1862Jun27P.png
June 27, 1862
SE1880Jul07A.png
July 7, 1880
SE1898Jul18A.png
July 18, 1898
111213
SE1916Jul30A.png
July 30, 1916
SE1934Aug10A.png
August 10, 1934
SE1952Aug20A.png
August 20, 1952
141516
SE1970Aug31A.png
August 31, 1970
SE1988Sep11A.png
September 11, 1988
SE2006Sep22A.png
September 22, 2006
171819
SE2024Oct02A.png
October 2, 2024
SE2042Oct14A.png
October 14, 2042
SE2060Oct24A.png
October 24, 2060
202122
SE2078Nov04A.png
November 4, 2078
SE2096Nov15A.png
November 15, 2096
SE2114Nov27A.png
November 27, 2114
232425
SE2132Dec07A.png
December 7, 2132
SE2150Dec19A.png
December 19, 2150
SE2168Dec29A.png
December 29, 2168
26
SE2187Jan09A.png
January 9, 2187

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.

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 September 12, 1931 and July 1, 2011
September 11–12June 30–July 1April 17–19February 4–5November 22–23
114116118120122
SE1931Sep12P.png
September 12, 1931
SE1935Jun30P.png
June 30, 1935
SE1939Apr19A.png
April 19, 1939
SE1943Feb04T.png
February 4, 1943
SE1946Nov23P.png
November 23, 1946
124126128130132
SE1950Sep12T.png
September 12, 1950
SE1954Jun30T.png
June 30, 1954
SE1958Apr19A.png
April 19, 1958
SE1962Feb05T.png
February 5, 1962
SE1965Nov23A.png
November 23, 1965
134136138140142
SE1969Sep11A.png
September 11, 1969
SE1973Jun30T.png
June 30, 1973
SE1977Apr18A.png
April 18, 1977
SE1981Feb04A.png
February 4, 1981
SE1984Nov22T.png
November 22, 1984
144146148150152
SE1988Sep11A.png
September 11, 1988
SE1992Jun30T.png
June 30, 1992
SE1996Apr17P.png
April 17, 1996
SE2000Feb05P.png
February 5, 2000
SE2003Nov23T.png
November 23, 2003
154156
SE2007Sep11P.png
September 11, 2007
SE2011Jul01P.png
July 1, 2011

Notes

  1. 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.
  2. "NASA - Catalog of Solar Eclipses of Saros 144". eclipse.gsfc.nasa.gov.

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References