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Solar eclipse of December 13, 1974
20th-century partial solar eclipse
20th-century partial solar eclipse
| Field | Value |
|---|---|
| previous | Solar eclipse of June 20, 1974 |
| next | Solar eclipse of May 11, 1975 |
A partial solar eclipse occurred at the Moon's ascending node of orbit on Friday, December 13, 1974, with a magnitude of 0.8266. 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 partial solar eclipse occurs in the polar regions of the Earth when the center of the Moon's shadow misses the Earth.
A partial eclipse was visible for parts of North America, the Caribbean, extreme northern South America, and the Iberian Peninsula.
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.
| Event | Time (UTC) |
|---|---|
| First Penumbral External Contact | 1974 December 13 at 14:03:46.5 UTC |
| Greatest Eclipse | 1974 December 13 at 16:13:13.1 UTC |
| Equatorial Conjunction | 1974 December 13 at 16:17:20.5 UTC |
| Ecliptic Conjunction | 1974 December 13 at 16:25:30.1 UTC |
| Last Penumbral External Contact | 1974 December 13 at 18:22:43.5 UTC |
| Parameter | Value |
|---|---|
| Eclipse Magnitude | 0.82664 |
| Eclipse Obscuration | 0.76006 |
| Gamma | 1.07974 |
| Sun Right Ascension | 17h22m00.7s |
| Sun Declination | -23°09'15.3" |
| Sun Semi-Diameter | 16'14.8" |
| Sun Equatorial Horizontal Parallax | 08.9" |
| Moon Right Ascension | 17h21m52.0s |
| Moon Declination | -22°09'07.8" |
| Moon Semi-Diameter | 15'13.3" |
| Moon Equatorial Horizontal Parallax | 0°55'51.8" |
| ΔT | 45.4 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.
| November 29 | |||
|---|---|---|---|
| Descending node (full moon) | |||
| December 13 | |||
| Ascending node (new moon) | |||
| [[File:Lunar eclipse chart close-1974Nov29.png | 200px]] | [[File:SE1974Dec13P.png | 200px]] |
| Total lunar eclipse | |||
| Lunar Saros 125 | Partial solar eclipse | ||
| Solar Saros 151 |
References
References
- "December 13, 1974 Partial Solar Eclipse". timeanddate.
- "Partial Solar Eclipse of 1974 Dec 13". EclipseWise.com.
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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