| Total eclipse | |
 Map | |
| Gamma | 0.8083 |
|---|---|
| Magnitude | 1.0244 |
| Maximum eclipse | |
| Duration | 120 s (2 min 0 s) |
| Coordinates | 35°36′N58°36′W / 35.6°N 58.6°W /35.6; -58.6 |
| Max. width of band | 138 km (86 mi) |
| Times (UTC) | |
| Greatest eclipse | 17:18:27 |
| References | |
| Saros | 120 (48 of 71) |
| Catalog # (SE5000) | 8991 |
A totalsolar eclipse occurred on October 27, 1780. Asolar eclipse occurs when theMoon passes betweenEarth and theSun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. A total solar eclipse occurs when the Moon'sapparent 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.
During theAmerican Revolutionary War, the first American solar eclipse expedition was organized and sent out fromHarvard College inMassachusetts. A special immunity agreement was negotiated with theBritish to allow the scientists to work unharmed. The Harvard expedition, after all their efforts, missed the eclipse because they chose a site outside the path of totality. Modern analysis of this embarrassing incident for embryonic American science blamesSamuel Williams for miscalculating the path of totality.[1]
It is a part ofsolar Saros 120.
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