Solar eclipse of September 21, 1922

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. The greatest eclipse occurred exactly at perigee.

Solar eclipse of September 21, 1922
SE1922Sep21T.png
Map
Type of eclipse
NatureTotal
Gamma-0.213
Magnitude1.0678
Maximum eclipse
Duration359 sec (5 m 59 s)
Coordinates10°42′S 104°30′E / 10.7°S 104.5°E / -10.7; 104.5
Max. width of band226 km (140 mi)
Times (UTC)
Greatest eclipse4:40:31
References
Saros133 (40 of 72)
Catalog # (SE5000)9333

Totality started in Ethiopia, Italian Somaliland (today's Somalia), and passed British Maldives and Christmas Island in the Straits Settlements (now in Australia) in the Indian Ocean, and Australia. Two large scientific expeditions investigated Einstein's theory of relativity.[1]

Related eclipsesEdit

Solar eclipses 1921–1924Edit

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.[2]

Saros 133Edit

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.[3] The total eclipses of this saros series are getting shorter and farther south with each iteration. All eclipses in this series occurs at the Moon’s ascending node.

ReferencesEdit

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

External linksEdit