A total solar eclipse occurred at the Moon's ascending node of orbit on Saturday, October 1, 1921, with a magnitude of 1.0293. 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. Occurring about 1.9 days after perigee (on September 29, 1921, at 14:50 UTC), the Moon's apparent diameter was larger.
Totality was visible from parts of Antarctica. A partial eclipse was visible for parts of South America and Antarctica.
Eclipse details Shown below are two tables displaying details about this particular solar eclipse. The first table outlines times at which the Moon's penumbra or umbra attains the specific parameter, and the second table describes various other parameters pertaining to this eclipse.
+October 1, 1921 Solar Eclipse Times Event Time (UTC) First Penumbral External Contact 1921 October 1 at 10:27:26.7 UTC First Umbral External Contact 1921 October 1 at 11:58:17.2 UTC First Central Line 1921 October 1 at 12:00:11.9 UTC First Umbral Internal Contact 1921 October 1 at 12:02:12.3 UTC Ecliptic Conjunction 1921 October 1 at 12:26:22.9 UTC Greatest Duration 1921 October 1 at 12:35:07.2 UTC Greatest Eclipse 1921 October 1 at 12:35:58.1 UTC Equatorial Conjunction 1921 October 1 at 13:07:31.9 UTC Last Umbral Internal Contact 1921 October 1 at 13:09:22.8 UTC Last Central Line 1921 October 1 at 13:11:21.2 UTC Last Umbral External Contact 1921 October 1 at 13:13:14.0 UTC Last Penumbral External Contact 1921 October 1 at 14:44:18.5 UTC
+October 1, 1921 Solar Eclipse Parameters Parameter Value Eclipse Magnitude 1.02931 Eclipse Obscuration 1.05948 Gamma −0.93833 Sun Right Ascension 12h28m35.7s Sun Declination -03°05'21.9" Sun Semi-Diameter 15'58.8" Sun Equatorial Horizontal Parallax 08.8" Moon Right Ascension 12h27m27.1s Moon Declination -03°58'54.5" Moon Semi-Diameter 16'21.8" Moon Equatorial Horizontal Parallax 1°00'03.1" ΔT 22.4 s
Eclipse season
This eclipse is part of an eclipse season, a period, roughly every six months, when eclipses occur. Only two (or occasionally three) eclipse seasons occur each year, and each season lasts about 35 days and repeats just short of six months (173 days) later; thus two full eclipse seasons always occur each year. Either two or three eclipses happen each eclipse season. In the sequence below, each eclipse is separated by a fortnight.
+ Eclipse season of October 1921 October 1Ascending node (new moon) October 16Descending node (full moon) Total solar eclipseSolar Saros 123 Partial lunar eclipseLunar Saros 135
Related eclipses Eclipses in 1921 An annular solar eclipse on April 8. A total lunar eclipse on April 22. A total solar eclipse on October 1. A partial lunar eclipse on October 16.
Metonic Preceded by: Solar eclipse of December 14, 1917 Followed by: Solar eclipse of July 20, 1925
Tzolkinex Preceded by: Solar eclipse of August 21, 1914 Followed by: Solar eclipse of November 12, 1928
Half-Saros Preceded by: Lunar eclipse of September 26, 1912 Followed by: Lunar eclipse of October 7, 1930
Tritos Preceded by: Solar eclipse of November 2, 1910 Followed by: Solar eclipse of August 31, 1932
Solar Saros 123 Preceded by: Solar eclipse of September 21, 1903 Followed by: Solar eclipse of October 12, 1939
Inex Preceded by: Solar eclipse of October 20, 1892 Followed by: Solar eclipse of September 12, 1950
Triad Preceded by: Solar eclipse of November 30, 1834 Followed by: Solar eclipse of August 1, 2008
Solar eclipses of 1921–1924
Saros 123
Metonic series
Tritos series
Inex series
Notes
References