Solar eclipse of October 12, 1939

Solar eclipse of October 12, 1939
	Map
Type of eclipse
Nature	Total
Gamma	-0.9737
Magnitude	1.0266
Maximum eclipse
Duration	92 sec (1 m 32 s)
Coordinates	72.8°S 155.1°E
Max. width of band	418 km (260 mi)
Times (UTC)
Greatest eclipse	20:40:23
References
Saros	123 (49 of 70)
Catalog # (SE5000)	9374

A total solar eclipse occurred on October 12, 1939. 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.

Related eclipses

Solar eclipses 1939–1942

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.[1]

Solar eclipse series sets from 1939–1942
Descending node		Ascending node
Saros	Map	Saros	Map
118	April 19, 1939 Annular	123	October 12, 1939 Total
128	April 7, 1940 Annular	133	October 1, 1940 Total
138	March 27, 1941 Annular	143	September 21, 1941 Total
148	March 16, 1942 Partial	153	September 10, 1942 Partial
The partial solar eclipse on August 12, 1942 occurs in the next lunar year eclipse set.

Metonic series

The metonic series repeats eclipses every 19 years (6939.69 days), lasting about 5 cycles. Eclipses occur in nearly the same calendar date. In addition, the octon subseries repeats 1/5 of that or every 3.8 years (1387.94 days). All eclipses in this table occur at the Moon's ascending node.

22 eclipse events between December 24, 1916 and July 31, 2000
December 24–25	October 12–13	July 31-Aug 1	May 18–20	March 7–8
91	93	95	97	99
December 23, 1878	October 12, 1882	July 31, 1886	May 18, 1890	March 7, 1894
101	103	105	107	109
December 23, 1897	October 12, 1901	August 1, 1905	May 19, 1909	March 8, 1913
111	113	115	117	119
December 24, 1916	October 12, 1920	July 31, 1924	May 19, 1928	March 7, 1932
121	123	125	127	129
December 25, 1935	October 12, 1939	August 1, 1943	May 20, 1947	March 7, 1951
131	133	135	137	139
December 25, 1954	October 12, 1958	July 31, 1962	May 20, 1966	March 7, 1970
141	143	145	147	149
December 24, 1973	October 12, 1977	July 31, 1981	May 19, 1985	March 7, 1989
151	153	155	157	159
December 24, 1992	October 12, 1996	July 31, 2000	May 19, 2004	March 7, 2008
161	163	165	167	169
December 24, 2011	October 13, 2015	August 1, 2019	May 19, 2023	March 8, 2027

Notes

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.

gollark: After all, they deserve it.

gollark: The conclusion is obvious: by setting up giant camera arrays and telescopes, we can annoy people in the past.

gollark: Precisely 42.7 arbitrary units.

gollark: A triangle wave? Sorcerer.

gollark: Well, that could work better.

References

Earth visibility chart and eclipse statistics Eclipse Predictions by Fred Espenak, NASA/GSFC
- Google interactive map
- Besselian elements

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[1] 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.