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.
| Solar eclipse of January 24, 1925 | |
|---|---|
 Map | |
| Type of eclipse | |
| Nature | Total |
| Gamma | 0.8661 |
| Magnitude | 1.0304 |
| Maximum eclipse | |
| Duration | 152 s (2 min 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 |
Observations edit
It was seen in New York City. It was reported that those north of 96th Street in Manhattan saw a total solar eclipse while those south of 96th Street saw a partial eclipse.[1]
Visual and radio observations were conducted by researchers working with Scientific American.[2]
Related eclipses edit
Solar eclipses 1924–1928 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.[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 edit
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 edit
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 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).
| 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 edit
Notes edit
- ^ Solar Eclipses in History by Ken Poshedly
- ^ "The Best Observed Eclipse in History". Scientific American. 132 (3): 155. 1925. Bibcode:1925SciAm.132..155.. doi:10.1038/scientificamerican0325-155. JSTOR 24978840.
- ^ 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 edit
Further reading edit
- 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 edit
