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Solar eclipse of September 21, 1922

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Title: Solar eclipse of September 21, 1922  
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Subject: Solar Saros 133, Solar eclipse of August 30, 1924, Solar eclipse of March 5, 1924, Solar eclipse of April 8, 1921, Solar eclipse of September 10, 1923
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Solar eclipse of September 21, 1922

Solar eclipse of September 21, 1922
Map
Type of eclipse
Nature Total
Gamma -0.213
Magnitude 1.0678
Maximum eclipse
Duration 5m 59s
Coordinates 10.7S 104.5E
Max. width of band 226 km
Times (UTC)
Greatest eclipse 4:40:31
References
Saros 133 (40 of 72)
Catalog # (SE5000) 9333

A total solar eclipse occurred on September 21, 1922.

This eclipse started in Africa and covered the whole Indian Ocean and Australia. Two large scientific expeditions investigated Einstein's theory of relativity.[1]

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, blocking all direct sunlight, turning day into darkness. Totality occurs in a narrow path across the surface of the Earth, while a partial solar eclipse will be visible over a region thousands of kilometres wide.

Related eclipses

Solar eclipses 1921-1924

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.

Solar eclipse series sets from 1921-1924
Ascending node   Descending node
118 April 8, 1921

Annular
123 October 1, 1921

Total
128 March 28, 1922

Annular
133 September 21, 1922

Total
138 March 17, 1923

Annular
143 September 10, 1923

Total
148 March 5, 1924

Partial
153 August 30, 1924

Partial

Saros 133

Solar Saros 133, repeating every 18 years, 11 days, contains 72 events. The series started with a partial solar eclipse on July 13, 1219. It contains annular eclipses from November 20, 1435, through January 13, 1526, with a hybrid eclipse on January 24, 1544. It has total eclipses from February 3, 1562, through June 21, 2373. The series ends at member 72 as a partial eclipse on September 5, 2499. The longest duration of totality was 6 minutes, 50 seconds on August 7, 1850.[2] The total eclipses of this saros series are getting shorter and farther south with each iteration.

Series members 30-49 occur between 1742 and 2100
30 31 32
June 3, 1742 June 13, 1760
June 24, 1778
33 34 35
July 4, 1796 July 17, 1814 July 27, 1832
36 37 38
August 7, 1850
August 18, 1868

August 29, 1886
39 40 41

September 9, 1904

September 21, 1922

October 1, 1940
42 43 44

October 12, 1958

October 23, 1976

November 3, 1994
45 46 47

November 13, 2012

November 25, 2030

December 5, 2048
48 49 50

December 17, 2066

December 27, 2084
January 8, 2103

References

  1. ^ "1922 Solar Eclipse in Australia Testing Einstein's Theory". Retrieved 4 June 2011. 
  2. ^ http://eclipse.gsfc.nasa.gov/SEsaros/SEsaros133.html

External links

  • Fotos of Solar Corona September 21, 1922
  • Earth visibility chart and eclipse statistics Eclipse Predictions by Fred Espenak, NASA/GSFC
    • Google interactive map
    • Besselian elements
  • 1922 Solar Eclipse in Australia
  • Wallal: The 1922 Eclipse Expedition
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