Solar eclipse of August 22, 1979

Last updated
Solar eclipse of August 22, 1979
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Map
Type of eclipse
NatureAnnular
Gamma -0.9632
Magnitude 0.9329
Maximum eclipse
Duration363 sec (6 m 3 s)
Coordinates 59°36′S108°30′W / 59.6°S 108.5°W / -59.6; -108.5
Max. width of band953 km (592 mi)
Times (UTC)
Greatest eclipse17:22:38
References
Saros 125 (52 of 73)
Catalog # (SE5000) 9463

An annular solar eclipse occurred on Wednesday, August 22, 1979. 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. A small annular eclipse covered only 93% of the Sun in a very broad path, 953 km wide at maximum, and lasted 6 minutes and 3 seconds. This was the second solar eclipse in 1979, the first one a total solar eclipse on February 26.

Contents

This was the last of 40 umbral eclipses of Solar Saros 125. The first was in 1276 and the last was in 1979. The total duration is 703 years.

Eclipses in 1979

Solar eclipses 1979–1982

Each member 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.

Saros 125

Solar saros 125, repeating every about 18 years and 11 days, contains 73 events. The series started with a partial solar eclipse on February 4, 1060. It has total eclipses from June 13, 1276, to July 16, 1330. It has hybrid eclipses on July 26, 1348, and August 7, 1366, and annular eclipses from August 17, 1384, to August 22, 1979. The series ends at member 73 as a partial eclipse on April 9, 2358. The longest total eclipse occurred on June 25, 1294, at 1 minute and 11 seconds; the longest annular eclipse occurred on July 10, 1907, at 7 minutes and 23 seconds. [1]

Series members 47–58 occur between 1881 and 2100:
474849
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June 28, 1889
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July 10, 1907
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July 20, 1925
505152
SE1943Aug01A.png
August 1, 1943
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August 11, 1961
SE1979Aug22A.png
August 22, 1979
535455
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September 2, 1997
SE2015Sep13P.png
September 13, 2015
SE2033Sep23P.png
September 23, 2033
565758
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October 4, 2051
SE2069Oct15P.png
October 15, 2069
SE2087Oct26P.png
October 26, 2087

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.

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.

21 eclipse events, progressing from south to north between June 10, 1964, and August 21, 2036
June 10–11March 27–29January 15–16November 3August 21–22
117119121123125
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June 10, 1964
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March 28, 1968
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January 16, 1972
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November 3, 1975
SE1979Aug22A.png
August 22, 1979
127129131133135
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June 11, 1983
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March 29, 1987
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January 15, 1991
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November 3, 1994
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August 22, 1998
137139141143145
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June 10, 2002
SE2006Mar29T.png
March 29, 2006
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January 15, 2010
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November 3, 2013
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August 21, 2017
147149151153155
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June 10, 2021
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March 29, 2025
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January 14, 2029
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November 3, 2032
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August 21, 2036

Notes

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References