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Solar eclipse of July 18, 1860
Total eclipse
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Total eclipse
| Field | Value |
|---|---|
| previous | Solar eclipse of January 23, 1860 |
| next | Solar eclipse of January 11, 1861 |
A total solar eclipse occurred at the Moon's descending node of orbit on Wednesday, July 18, 1860, with a magnitude of 1.0500. 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 2.2 days before perigee (on July 20, 1860, at 19:15 UTC), the Moon's apparent diameter was larger.
The path of totality was visible from parts of modern-day northwestern Oregon, Washington, northern Idaho, northwestern Montana, Canada, Spain, Algeria, Tunisia, Libya, Egypt, Sudan, and Eritrea. A partial solar eclipse was also visible for parts of North America, Europe, West Asia, North Africa, and West Africa.
Coronal Mass Ejection
The first coronal mass ejection may have been observed as coronal loops progressing during this total eclipse.
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 | 1860 July 18 at 11:54:56.3 UTC |
| First Umbral External Contact | 1860 July 18 at 12:57:13.1 UTC |
| First Central Line | 1860 July 18 at 12:58:21.9 UTC |
| First Umbral Internal Contact | 1860 July 18 at 12:59:31.0 UTC |
| Equatorial Conjunction | 1860 July 18 at 14:09:18.4 UTC |
| Ecliptic Conjunction | 1860 July 18 at 14:20:40.8 UTC |
| Greatest Duration | 1860 July 18 at 14:24:54.3 UTC |
| Greatest Eclipse | 1860 July 18 at 14:26:24.2 UTC |
| Last Umbral Internal Contact | 1860 July 18 at 15:53:26.2 UTC |
| Last Central Line | 1860 July 18 at 15:54:37.2 UTC |
| Last Umbral External Contact | 1860 July 18 at 15:55:48.0 UTC |
| Last Penumbral External Contact | 1860 July 18 at 16:57:54.9 UTC |
| Parameter | Value |
|---|---|
| Eclipse Magnitude | 1.05000 |
| Eclipse Obscuration | 1.10249 |
| Gamma | 0.54871 |
| Sun Right Ascension | 07h52m23.3s |
| Sun Declination | +20°56'51.5" |
| Sun Semi-Diameter | 15'44.4" |
| Sun Equatorial Horizontal Parallax | 08.7" |
| Moon Right Ascension | 07h53m03.2s |
| Moon Declination | +21°28'15.4" |
| Moon Semi-Diameter | 16'18.0" |
| Moon Equatorial Horizontal Parallax | 0°59'49.1" |
| ΔT | 7.7 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.
| July 18 | ||
|---|---|---|
| Descending node (new moon) | ||
| August 1 | ||
| Ascending node (full moon) | ||
| [[File:SE1860Jul18T.png | 200px]] | |
| Total solar eclipse | ||
| Solar Saros 124 | Partial lunar eclipse | |
| Lunar Saros 136 |
References
References
- "Moon Distances for London, United Kingdom, England". timeanddate.
- (2014). "Coronal Mass Ejections from the Sun - Propagation and Near Earth Effects".
- "Total Solar Eclipse of 1860 Jul 18". 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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