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Solar eclipse of January 24, 1925

Total eclipse

Solar eclipse of January 24, 1925
Summary

Total eclipse

FieldValue
previousSolar eclipse of August 30, 1924
nextSolar eclipse of July 20, 1925

A total solar eclipse occurred at the Moon's descending node of orbit on Saturday, January 24, 1925, 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.

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

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 north of 96th Street in Manhattan saw a total solar eclipse while those south of 96th Street saw a partial eclipse.

Visual and radio observations were conducted by researchers working with Scientific American.

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.

EventTime (UTC)
First Penumbral External Contact1925 January 24 at 12:41:48.8 UTC
First Umbral External Contact1925 January 24 at 14:01:18.9 UTC
First Central Line1925 January 24 at 14:02:31.1 UTC
First Umbral Internal Contact1925 January 24 at 14:03:44.6 UTC
Ecliptic Conjunction1925 January 24 at 14:45:16.3 UTC
Greatest Duration1925 January 24 at 14:53:02.2 UTC
Greatest Eclipse1925 January 24 at 14:54:03.1 UTC
Equatorial Conjunction1925 January 24 at 15:06:52.3 UTC
Last Umbral Internal Contact1925 January 24 at 15:44:13.9 UTC
Last Central Line1925 January 24 at 15:45:26.2 UTC
Last Umbral External Contact1925 January 24 at 15:46:37.2 UTC
Last Penumbral External Contact1925 January 24 at 17:06:14.1 UTC
ParameterValue
Eclipse Magnitude1.03044
Eclipse Obscuration1.06180
Gamma0.86613
Sun Right Ascension20h25m51.5s
Sun Declination-19°13'44.3"
Sun Semi-Diameter16'14.7"
Sun Equatorial Horizontal Parallax08.9"
Moon Right Ascension20h25m20.3s
Moon Declination-18°21'36.7"
Moon Semi-Diameter16'36.2"
Moon Equatorial Horizontal Parallax1°00'56.2"
ΔT23.6 s

Eclipse season

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.

January 24
Descending node (new moon)February 8
Ascending node (full moon)
[[File:SE1925Jan24T.png200px]][[File:Lunar eclipse chart close-1925Feb08.png200px]]
Annular solar eclipse
Solar Saros 120Penumbral lunar eclipse
Lunar Saros 132

Notes

References

References

  1. "January 24, 1925 Total Solar Eclipse". timeanddate.
  2. "Moon Distances for London, United Kingdom, England". timeanddate.
  3. [http://terpconnect.umd.edu/~toh/AstroLesson/jasa9107.txt Solar Eclipses in History] by Ken Poshedly
  4. (1925). "The Best Observed Eclipse in History". Scientific American.
  5. "Total Solar Eclipse of 1925 Jan 24". EclipseWise.com.
Wikipedia Source

This article was imported from Wikipedia and is available under the Creative Commons Attribution-ShareAlike 4.0 License. Content has been adapted to SurfDoc format. Original contributors can be found on the article history page.

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