Solar eclipse of September 21, 1922

A total solar eclipse occurred at the Moon's ascending node of orbit on Thursday, September 21, 1922, with a magnitude of 1.0678. 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.

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.

Observations
Observations of the total solar eclipse of May 29, 1919 got results consistent with gravitational lens proposed by Einstein's general relativity. To reconfirm the result, observatories in South Australia and New South Wales each organized a large scientific expedition. A total of 20 teams went to sparsely populated Wallal on the northern coast of Western Australia. Among them, the American team from the Lick Observatory arrived in Sydney on August 5, took a train westward and arrived in Perth on August 16. The team took a ship on August 20 from Fremantle, a port southwest of Perth, to Broome, and then finally arrived at Wallal. Although not organizing any observations, the Australian government provided financial support to the teams. For example, the round-trip travel expenses between Sydney and Wallal were paid by the federal government.

Eclipses in 1922

 * A penumbral lunar eclipse on March 13, 1922.
 * An annular solar eclipse on March 28, 1922.
 * A penumbral lunar eclipse on April 11, 1922.
 * A total solar eclipse on September 21, 1922.
 * A penumbral lunar eclipse on October 6, 1922.

Metonic

 * Preceded by: Solar eclipse of December 3, 1918
 * Followed by: Solar eclipse of July 9, 1926

Tzolkinex

 * Preceded by: Solar eclipse of August 10, 1915
 * Followed by: Solar eclipse of November 1, 1929

Half-Saros

 * Preceded by: Lunar eclipse of September 15, 1913
 * Followed by: Lunar eclipse of September 26, 1931

Tritos

 * Preceded by: Solar eclipse of October 22, 1911
 * Followed by: Solar eclipse of August 21, 1933

Solar Saros 133

 * Preceded by: Solar eclipse of September 9, 1904
 * Followed by: Solar eclipse of October 1, 1940

Inex

 * Preceded by: Solar eclipse of October 9, 1893
 * Followed by: Solar eclipse of September 1, 1951

Triad

 * Preceded by: Solar eclipse of November 20, 1835
 * Followed by: Solar eclipse of July 22, 2009