Solar eclipse of January 24, 1925

20th-century total solar eclipse
40°30′N 49°36′W / 40.5°N 49.6°W / 40.5; -49.6Max. width of band206 km (128 mi)Times (UTC)Greatest eclipse14:54:03ReferencesSaros120 (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 to 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

See also

Notes

  1. ^ SOLAR ECLIPSES IN HISTORY by Ken Poshedly
  2. ^ "The Best Observed Eclipse in History". Scientific American. 132 (3): 155. 1925. Bibcode:1925SciAm.132..155.. doi:10.1038/scientificamerican0325-155. JSTOR 24978840.
  3. ^ 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.

References

  • NASA gif of plot of solar eclipse
  • Foto and sketchs of Solar Corona January 24, 1925
  • Total Solar Eclipse of January 24, 1925 in New York

Further reading

  • Sisson, Patrick (August 14, 2017). "That diamond ring in the sun: The 1925 eclipse in New York City". Curbed NY. Retrieved August 21, 2017.

External links

Wikimedia Commons has media related to Solar eclipse of 1925 January 24.
  • Pathé News newsreel of 1925 solar eclipse, Pathé Gazette on YouTube
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