A total solar eclipse occurred at the Moon's descending node of orbit between Tuesday, October 21 and Wednesday, October 22, 1930, with a magnitude of 1.023. 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 2.6 days after perigee (on October 19, 1930, at 7:40 UTC), the Moon's apparent diameter was larger.
Totality was visible from Niuafoʻou in Tonga, Chile, and a tiny part of Santa Cruz Province, Argentina. A partial eclipse was visible for parts of Australia, Oceania, Antarctica, and southern South America.
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 21, 1930 Solar Eclipse Times Event Time (UTC) First Penumbral External Contact 1930 October 21 at 19:04:22.4 UTC First Umbral External Contact 1930 October 21 at 20:05:03.7 UTC First Central Line 1930 October 21 at 20:05:17.8 UTC First Umbral Internal Contact 1930 October 21 at 20:05:31.9 UTC First Penumbral Internal Contact 1930 October 21 at 21:17:17.4 UTC Greatest Eclipse 1930 October 21 at 21:43:53.4 UTC Greatest Duration 1930 October 21 at 21:44:03.4 UTC Ecliptic Conjunction 1930 October 21 at 21:47:55.4 UTC Equatorial Conjunction 1930 October 21 at 22:04:15.8 UTC Last Penumbral Internal Contact 1930 October 21 at 22:10:00.4 UTC Last Umbral Internal Contact 1930 October 21 at 23:22:05.3 UTC Last Central Line 1930 October 21 at 23:22:17.0 UTC Last Umbral External Contact 1930 October 21 at 23:22:28.7 UTC Last Penumbral External Contact 1930 October 22 at 00:23:21.5 UTC
+October 21, 1930 Solar Eclipse Parameters Parameter Value Eclipse Magnitude 1.02304 Eclipse Obscuration 1.04660 Gamma −0.38038 Sun Right Ascension 13h43m08.4s Sun Declination -10°41'09.2" Sun Semi-Diameter 16'04.3" Sun Equatorial Horizontal Parallax 08.8" Moon Right Ascension 13h42m27.1s Moon Declination -11°01'17.9" Moon Semi-Diameter 16'11.5" Moon Equatorial Horizontal Parallax 0°59'25.5" ΔT 24.0 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 1930 October 7Ascending node (full moon) October 21Descending node (new moon) Partial lunar eclipseLunar Saros 116 Total solar eclipseSolar Saros 142
Related eclipses Eclipses in 1930 A partial lunar eclipse on April 13. A hybrid solar eclipse on April 28. A partial lunar eclipse on October 7. A total solar eclipse on October 21.
Metonic Preceded by: Solar eclipse of January 3, 1927 Followed by: Solar eclipse of August 10, 1934
Tzolkinex Preceded by: Solar eclipse of September 10, 1923 Followed by: Solar eclipse of December 2, 1937
Half-Saros Preceded by: Lunar eclipse of October 16, 1921 Followed by: Lunar eclipse of October 28, 1939
Tritos Preceded by: Solar eclipse of November 22, 1919 Followed by: Solar eclipse of September 21, 1941
Solar Saros 142 Preceded by: Solar eclipse of October 10, 1912 Followed by: Solar eclipse of November 1, 1948
Inex Preceded by: Solar eclipse of November 11, 1901 Followed by: Solar eclipse of October 2, 1959
Triad Preceded by: Solar eclipse of December 21, 1843 Followed by: Solar eclipse of August 21, 2017
Solar eclipses of 1928–1931
Saros 142
Metonic series
Tritos series
Inex series
Notes
References