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Solar eclipse of August 22, 1998

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Solar eclipse of August 22, 1998
Map
Type of eclipse
NatureAnnular
Gamma−0.2644
Magnitude0.9734
Maximum eclipse
Duration194 s (3 min 14 s)
Coordinates3°00′S 145°24′E / 3°S 145.4°E / -3; 145.4
Max. width of band99 km (62 mi)
Times (UTC)
Greatest eclipse2:07:11
References
Saros135 (38 of 71)
Catalog # (SE5000)9504

An annular solar eclipse occurred at the Moon’s ascending node of orbit on Saturday, August 22, 1998, with a magnitude of 0.9734. 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 Indonesia, Malaysia, Papua New Guinea, Solomon Islands (Bellona Island and Rennell Island) and Vanuatu. Occurring only 5.2 days before apogee (on August 27, 1998), the Moon’s apparent diameter was 3.6% smaller than average.[1] [2] [3]

Images[edit]

Observations[edit]

It is usually very dry in Malaysia in August. But due to the El Niño, it rained every day for 2 weeks before the eclipse. On the eclipse day, the sun kept going in and out the gaps of the clouds at first, and later the clouds dispersed near Kota Tinggi District, the observation site of NASA's Johnson Space Center. The whole annular phase was seen. The sky cleared up completely 40 minutes later.[4]

Related eclipses[edit]

Eclipses in 1998[edit]

Metonic[edit]

Tzolkinex[edit]

Half-Saros[edit]

Tritos[edit]

Solar Saros 135[edit]

Inex[edit]

Triad[edit]

Solar eclipses of 1997–2000[edit]

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]

The partial solar eclipses on July 1, 2000 and December 25, 2000 occur in the next lunar year eclipse set.

Solar eclipse series sets from 1997 to 2000
Descending node   Ascending node
Saros Map Gamma Saros Map Gamma
120

Totality in Chita, Russia 		March 9, 1997

Total 		0.9183 125 September 2, 1997

Partial 		−1.0352
130

Totality near Guadeloupe 		February 26, 1998

Total 		0.2391 135 August 22, 1998

Annular 		−0.2644
140 February 16, 1999

Annular 		−0.4726 145

Totality in France 		August 11, 1999

Total 		0.5062
150 February 5, 2000

Partial 		−1.2233 155 July 31, 2000

Partial 		1.2166

Saros 135[edit]

This eclipse is a part of Saros series 135, repeating every 18 years, 11 days, and containing 71 events. The series started with a partial solar eclipse on July 5, 1331. It contains annular eclipses from October 21, 1511 through February 24, 2305; hybrid eclipses on March 8, 2323 and March 18, 2341; and total eclipses from March 29, 2359 through May 22, 2449. The series ends at member 71 as a partial eclipse on August 17, 2593. 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 was produced by member 16 at 10 minutes, 41 seconds on December 24, 1601, and the longest duration of totality will be produced by member 62 at 2 minutes, 27 seconds on May 12, 2431. All eclipses in this series occur at the Moon’s ascending node of orbit.[6]

Series members 28–49 occur between 1801 and 2200:
28 29 30

May 5, 1818
May 15, 1836
May 26, 1854
31 32 33

June 6, 1872
June 17, 1890
June 28, 1908
34 35 36

July 9, 1926
July 20, 1944
July 31, 1962
37 38 39

August 10, 1980
August 22, 1998
September 1, 2016
40 42 42

September 12, 2034
September 22, 2052
October 4, 2070
43 44 45

October 14, 2088
October 26, 2106
November 6, 2124
46 47 48

November 17, 2142
November 27, 2160
December 9, 2178
49

December 19, 2196

Metonic series[edit]

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.

21 eclipse events, progressing from south to north between June 10, 1964, and August 21, 2036
June 10–11 March 27–29 January 15–16 November 3 August 21–22
117 119 121 123 125

June 10, 1964
March 28, 1968
January 16, 1972
November 3, 1975
August 22, 1979
127 129 131 133 135

June 11, 1983
March 29, 1987
January 15, 1991
November 3, 1994
August 22, 1998
137 139 141 143 145

June 10, 2002
March 29, 2006
January 15, 2010
November 3, 2013
August 21, 2017
147 149 151 153 155

June 10, 2021
March 29, 2025
January 14, 2029
November 3, 2032
August 21, 2036

Notes[edit]

  1. ^ "Clouds may put eclipse in shade". The Sydney Morning Herald. Sydney, New South Wales, New South Wales, Australia. 1998-08-22. p. 5. Retrieved 2023-10-21 – via Newspapers.com.
  2. ^ "Saturday". Newsday (Suffolk Edition). 1998-08-19. p. 114. Retrieved 2023-10-21 – via Newspapers.com.
  3. ^ "Eclipse Aug. 23". Mitchell Tribune. 1998-08-05. p. 12. Retrieved 2023-10-21 – via Newspapers.com.
  4. ^ Paul Maley. "The August 22, 1998 Annular Solar Eclipse Seen from Malaysia". Archived from the original on 30 October 2020.
  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. ^ "NASA - Catalog of Solar Eclipses of Saros 135". eclipse.gsfc.nasa.gov.

References[edit]

Photos:

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