Solar eclipse of January 24, 1925

Solar eclipse of January 24, 1925
Solar eclipse of January 24, 1925
	Map
Type of eclipse
Nature	Total
Gamma	0.8661
Magnitude	1.0304
Maximum eclipse
Duration	152 sec (2 m 32 s)
Coordinates	40°30′N 49°36′W / 40.5°N 49.6°W
Max. width of band	206 km (128 mi)
Times (UTC)
Greatest eclipse	14:54:03
References
Saros	120 (56 of 71)
Catalog # (SE5000)	9339

A total solar eclipse occurred on January 24, 1925. 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. Totality was visible from southwestern and southeastern Quebec in Canada, and the United States, including Toronto, Niagara Falls and the northern part of New York City.

Observations[]

The "diamond ring" corona, as seen from New York City on January 24, 1925

It was seen in New York City. It was reported that those above 96th Street in Manhattan saw a total solar eclipse while those below 96th Street saw a partial eclipse.^[1]

Visual and radio observations were conducted by researchers working with Scientific American. ^[2]

Related eclipses[]

Solar eclipses 1924–1928[]

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.^[3]

Solar eclipse series sets from 1924–1928
Ascending node		Descending node
115	July 31, 1924 Partial	120	January 24, 1925 Total
125	July 20, 1925 Annular	130	January 14, 1926 Total
135	July 9, 1926 Annular	140	January 3, 1927 Annular
145	June 29, 1927 Total	150	December 24, 1927 Partial
155	June 17, 1928 Partial

Saros 120[]

This eclipse is a part of Saros cycle 120, repeating every 18 years, 11 days, containing 71 events. The series started with partial solar eclipse on May 27, 933 AD, and reached an annular eclipse on August 11, 1059. It was a hybrid event for 3 dates: May 8, 1510, through May 29, 1546, and total eclipses from June 8, 1564, through March 30, 2033. The series ends at member 71 as a partial eclipse on July 7, 2195. The longest duration of totality was 2 minutes, 50 seconds on March 9, 1997. All eclipses in this series occurs at the Moon’s descending node.

Series members 55–65 occur between 1901 and 2100
55	56	57
January 14, 1907	January 24, 1925	February 4, 1943
58	59	60
February 15, 1961	February 26, 1979	March 9, 1997
61	62	63
March 20, 2015	March 30, 2033	April 11, 2051
64	65
April 21, 2069	May 2, 2087

Tritos series[]

This eclipse is a part of a tritos cycle, repeating at alternating nodes every 135 synodic months (≈ 3986.63 days, or 11 years minus 1 month). Their appearance and longitude are irregular due to a lack of synchronization with the anomalistic month (period of perigee), but groupings of 3 tritos cycles (≈ 33 years minus 3 months) come close (≈ 434.044 anomalistic months), so eclipses are similar in these groupings.

Series members between 1901 and 2100
March 29, 1903 (Saros 118)	February 25, 1914 (Saros 119)	January 24, 1925 (Saros 120)
December 25, 1935 (Saros 121)	November 23, 1946 (Saros 122)	October 23, 1957 (Saros 123)
September 22, 1968 (Saros 124)	August 22, 1979 (Saros 125)	July 22, 1990 (Saros 126)
June 21, 2001 (Saros 127)	May 20, 2012 (Saros 128)	April 20, 2023 (Saros 129)
March 20, 2034 (Saros 130)	February 16, 2045 (Saros 131)	January 16, 2056 (Saros 132)
December 17, 2066 (Saros 133)	November 15, 2077 (Saros 134)	October 14, 2088 (Saros 135)
September 14, 2099 (Saros 136)

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).

22 eclipse events, progressing from north to south between April 8, 1902 and August 31, 1989:
April 7–8	January 24–25	November 12	August 31-September 1	June 19–20
108			114	116
April 8, 1902			August 31, 1913	June 19, 1917
118	120	122	124	126
April 8, 1921	January 24, 1925	November 12, 1928	August 31, 1932	June 19, 1936
128	130	132	134	136
April 7, 1940	January 25, 1944	November 12, 1947	September 1, 1951	June 20, 1955
138	140	142	144	146
April 8, 1959	January 25, 1963	November 12, 1966	August 31, 1970	June 20, 1974
148	150	152	154
April 7, 1978	January 25, 1982	November 12, 1985	August 31, 1989