Solar eclipse of January 24, 1925
{{Short description|Total eclipse}}
{{Infobox solar eclipse|1925Jan24
| previous = Solar eclipse of August 30, 1924
| next = Solar eclipse of July 20, 1925
}}
A total solar eclipse occurred at the Moon's descending node of orbit on Saturday, January 24, 1925,{{cite web|title=January 24, 1925 Total Solar Eclipse|url=https://www.timeanddate.com/eclipse/solar/1925-january-24|publisher=timeanddate|access-date=2 August 2024}} with a magnitude of 1.0304. 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. Occurring about 1.1 days after perigee (on January 23, 1925, at 13:30 UTC), the Moon's apparent diameter was larger.{{cite web|title=Moon Distances for London, United Kingdom, England|url=https://www.timeanddate.com/astronomy/moon/distance.html?year=1925&n=136|publisher=timeanddate|access-date=2 August 2024}}
Totality was visible from southwestern and southeastern Ontario in Canada (including Toronto and Niagara Falls), Minnesota, Wisconsin, Michigan, Pennsylvania, New York (including the northern part of New York City), New Jersey, Connecticut, Rhode Island, and Massachusetts. A partial eclipse was visible for parts of North America, Central America, the Caribbean, northern South America, West Africa, and Western Europe.
Observations
File:Diamond ring of the solar eclipse - Jan. 24, 1925.jpg
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.[http://terpconnect.umd.edu/~toh/AstroLesson/jasa9107.txt Solar Eclipses in History] by Ken Poshedly
Visual and radio observations were conducted by researchers working with Scientific American.{{cite journal |title=The Best Observed Eclipse in History |journal=Scientific American |volume=132 |issue=3 |pages=155 |jstor=24978840 |year=1925 |doi=10.1038/scientificamerican0325-155 |bibcode=1925SciAm.132..155. }}
Eclipse details
Shown below are two tables displaying details about this particular solar eclipse. The first table outlines times at which the moon's penumbra or umbra attains the specific parameter, and the second table describes various other parameters pertaining to this eclipse.{{cite web|title=Total Solar Eclipse of 1925 Jan 24|url=https://eclipsewise.com/solar/SEprime/1901-2000/SE1925Jan24Tprime.html|publisher=EclipseWise.com|access-date=2 August 2024}}
| class="wikitable" align="{{{align|left}}}" style="margin:{{#ifeq:{{{align}}}|left|0 0 0.5em 1em|0 1em 0.5em 0}}"
|+January 24, 1925 Solar Eclipse Times ! Event ! Time (UTC) |
| First Penumbral External Contact
| 1925 January 24 at 12:41:48.8 UTC |
| First Umbral External Contact
| 1925 January 24 at 14:01:18.9 UTC |
| First Central Line
| 1925 January 24 at 14:02:31.1 UTC |
| First Umbral Internal Contact
| 1925 January 24 at 14:03:44.6 UTC |
| Ecliptic Conjunction
| 1925 January 24 at 14:45:16.3 UTC |
| Greatest Duration
| 1925 January 24 at 14:53:02.2 UTC |
| Greatest Eclipse
| 1925 January 24 at 14:54:03.1 UTC |
| Equatorial Conjunction
| 1925 January 24 at 15:06:52.3 UTC |
| Last Umbral Internal Contact
| 1925 January 24 at 15:44:13.9 UTC |
| Last Central Line
| 1925 January 24 at 15:45:26.2 UTC |
| Last Umbral External Contact
| 1925 January 24 at 15:46:37.2 UTC |
| Last Penumbral External Contact
| 1925 January 24 at 17:06:14.1 UTC |
| class="wikitable" align="{{{align|right}}}" style="margin:{{#ifeq:{{{align}}}|right|0 0 0.5em 1em|0 1em 0.5em 0}}"
|+January 24, 1925 Solar Eclipse Parameters ! Parameter ! Value |
| Eclipse Magnitude
| 1.03044 |
| Eclipse Obscuration
| 1.06180 |
| Gamma
| 0.86613 |
| Sun Right Ascension
| 20h25m51.5s |
| Sun Declination
| -19°13'44.3" |
| Sun Semi-Diameter
| 16'14.7" |
| Sun Equatorial Horizontal Parallax
| 08.9" |
| Moon Right Ascension
| 20h25m20.3s |
| Moon Declination
| -18°21'36.7" |
| Moon Semi-Diameter
| 16'36.2" |
| Moon Equatorial Horizontal Parallax
| 1°00'56.2" |
| ΔT
| 23.6 s |
{{clear}}
Eclipse season
{{See also|Eclipse cycle}}
This eclipse is part of an eclipse season, a period, roughly every six months, when eclipses occur. Only two (or occasionally three) eclipse seasons occur each year, and each season lasts about 35 days and repeats just short of six months (173 days) later; thus two full eclipse seasons always occur each year. Either two or three eclipses happen each eclipse season. In the sequence below, each eclipse is separated by a fortnight.
| class="wikitable"
|+ Eclipse season of January–February 1925 ! January 24 | |
| 200px | 200px |
| align=center
| Annular solar eclipse | Penumbral lunar eclipse Lunar Saros 132 |
Related eclipses
= Eclipses in 1925 =
- A total solar eclipse on January 24.
- A partial lunar eclipse on February 8.
- An annular solar eclipse on July 20.
- A partial lunar eclipse on August 4.
= Metonic =
- Preceded by: Solar eclipse of April 8, 1921
- Followed by: Solar eclipse of November 12, 1928
= Tzolkinex =
- Preceded by: Solar eclipse of December 14, 1917
- Followed by: Solar eclipse of March 7, 1932
= Half-Saros =
- Preceded by: Lunar eclipse of January 20, 1916
- Followed by: Lunar eclipse of January 30, 1934
= Tritos =
- Preceded by: Solar eclipse of February 25, 1914
- Followed by: Solar eclipse of December 25, 1935
= Solar Saros 120 =
- Preceded by: Solar eclipse of January 14, 1907
- Followed by: Solar eclipse of February 4, 1943
= Inex =
- Preceded by: Solar eclipse of February 13, 1896
- Followed by: Solar eclipse of January 5, 1954
= Triad =
- Preceded by: Solar eclipse of March 25, 1838
- Followed by: Solar eclipse of November 25, 2011
= Solar eclipses of 1924–1928 =
{{Solar eclipse set 1924–1928}}
= Saros 120 =
{{Solar Saros series 120}}
= Metonic series =
{{Solar Metonic series 1902–1989}}
= Tritos series =
{{Solar Tritos series 2001 June 21}}
= Inex series =
{{Solar Inex series 2011 November 25}}
See also
Notes
{{reflist}}
References
- [http://eclipse.gsfc.nasa.gov/SEplot/SEplot1901/SE1925Jan24T.GIF NASA gif of plot of solar eclipse]
- [http://xjubier.free.fr/en/site_pages/solar_eclipses/Solar_Corona_Shape_pg02.html Foto and sketchs of Solar Corona January 24, 1925]
- [http://tse1925.com/ Total Solar Eclipse of January 24, 1925 in New York]
Further reading
{{refbegin}}
- {{Cite web |last1=Sisson |first1=Patrick |title=That diamond ring in the sun: The 1925 eclipse in New York City |work=Curbed NY |date=2017-08-14 |url=https://ny.curbed.com/2017/8/14/16143672/solar-eclipse-new-york-city-history |access-date=2017-08-21 |df=mdy-all }}
{{refend}}
External links
{{Commons category|Solar eclipse of 1925 January 24}}
- {{YouTube|_M7uHUUqxFc|Pathé News newsreel of 1925 solar eclipse, Pathé Gazette}}
{{Solar eclipses}}
{{DEFAULTSORT:Solar Eclipse Of January 24, 1925}}