Solar eclipse of September 12, 1931

Solar eclipse of September 12, 1931
Solar eclipse of September 12, 1931
	Map
Type of eclipse
Nature	Partial
Gamma	1.506
Magnitude	0.0471
Maximum eclipse
Coordinates	61°12′N 152°48′W / 61.2°N 152.8°W
Times (UTC)
Greatest eclipse	4:41:25
References
Saros	114 (72 of 72)
Catalog # (SE5000)	9355

A partial solar eclipse occurred at the Moon's descending node of orbit on Saturday, September 12, 1931, with a magnitude of 0.0471. 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 partial solar eclipse occurs in the polar regions of the Earth when the center of the Moon's shadow misses the Earth.

This was the 72nd and final event from Solar Saros 114. It started in 651 AD and ended in 1931.

Related eclipses[edit]

Solar eclipses of 1931–1935[edit]

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]

The partial solar eclipses on April 18, 1931 and October 11, 1931 occur in the previous lunar year eclipse set, and the solar eclipses on January 5, 1935 (partial), June 30, 1935 (partial), and December 25, 1935 (annular) occur in the next lunar year eclipse set.

Solar eclipse series sets from 1931 to 1935
Descending node			Ascending node
Saros	Map	Gamma	Saros	Map	Gamma
114	September 12, 1931 Partial	1.506	119	March 7, 1932 Annular	−0.9673
124	August 31, 1932 Total	0.8307	129	February 24, 1933 Annular	−0.2191
134	August 21, 1933 Annular	0.0869	139	February 14, 1934 Total	0.4868
144	August 10, 1934 Annular	−0.689	149	February 3, 1935 Partial	1.1438
154	July 30, 1935 Partial	−1.4259

Saros 114[edit]

This eclipse is a part of Saros series 114, repeating every 18 years, 11 days, and containing 72 events. The series started with a partial solar eclipse on July 23, 651 AD. It contains annular eclipses from February 3, 976 AD through June 11, 1192; hybrid eclipses from June 22, 1210 through December 1, 1480; and total eclipses from December 13, 1498 through June 15, 1787. The series ends at member 72 as a partial eclipse on September 12, 1931. Its eclipses are tabulated in three columns; every third eclipse in the same column is one exeligmos apart, so they all cast shadows over approximately the same parts of the Earth.

The longest duration of annularity was produced by member 20 at 4 minutes, 33 seconds on February 13, 994 AD, and the longest duration of totality was produced by member 59 at 4 minutes, 18 seconds on April 21, 1697. All eclipses in this series occur at the Moon’s descending node of orbit.^[2]

Series members 65–72 occur between 1801 and 1931:
65	66	67
June 26, 1805	July 8, 1823	July 18, 1841
68	69	70
July 29, 1859	August 9, 1877	August 20, 1895
71	72
August 31, 1913	September 12, 1931

Metonic series[edit]

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 descending node.

22 eclipse events between September 12, 1931 and July 1, 2011.
September 11-12	June 30-July 1	April 17-19	February 4-5	November 22-23
114	116	118	120	122
September 12, 1931	June 30, 1935	April 19, 1939	February 4, 1943	November 23, 1946
124	126	128	130	132
September 12, 1950	June 30, 1954	April 19, 1958	February 5, 1962	November 23, 1965
134	136	138	140	142
September 11, 1969	June 30, 1973	April 18, 1977	February 4, 1981	November 22, 1984
144	146	148	150	152
September 11, 1988	June 30, 1992	April 17, 1996	February 5, 2000	November 23, 2003
154	156
September 11, 2007	July 1, 2011