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 | 359 sec (5 m 59 s) |
| Coordinates | 10°42′S 104°30′E / 10.7°S 104.5°E |
| Max. width of band | 226 km (140 mi) |
| 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. 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.
This eclipse started in Africa and covered the whole Indian Ocean and Australia. Two large scientific expeditions investigated Einstein's theory of relativity.[1]
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.
| 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.
| 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
External links
- Earth visibility chart and eclipse statistics Eclipse Predictions by Fred Espenak, NASA/GSFC
- 1922 Solar Eclipse in Australia
- Wallal: The 1922 Eclipse Expedition
- Photographs from the Wallal Australia expedition from the Lick Observatory Records Digital Archive, UC Santa Cruz Library's Digital Collections
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