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A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby obscuring the view of the Sun from a small part of Earth, totally or partially.Such an alignment occurs approximately every six months, during the eclipse season in its new moon phase, when the Moon's orbital plane is closest to the plane of Earth's orbit. [1]
An observer in the penumbra experiences a partial eclipse. An alternative definition is that the penumbra is the region where some or all of the light source is obscured (i.e., the umbra is a subset of the penumbra). For example, NASA's Navigation and Ancillary Information Facility defines that a body in the umbra is also within the penumbra. [2]
A total eclipse occurs when the observer is within the umbra, an annular eclipse when the observer is within the antumbra, and a partial eclipse when the observer is within the penumbra. During a lunar eclipse only the umbra and penumbra are applicable, because the antumbra of the Sun-Earth system lies far beyond the Moon.
A partial solar eclipse, where the moon appears to take a crescent-shaped “bite” out of the sun, was visible for those outside the path of totality. One eclipse viewer, Richard Canedo, who has ...
This composite image shows the progression of a partial solar eclipse over Ross Lake in Northern Cascades National Park in Washington on August 21, 2017. - Bill Ingalls/NASA.
A solar eclipse with small gamma will be followed by a very central total lunar eclipse. A solar eclipse where the Moon's penumbra just barely grazes the southern limb of Earth will be followed half a saros later by a lunar eclipse where the Moon just grazes the southern limb of the Earth's penumbra. [3] Tritos Equal to an inex minus a saros.
The entire partial eclipse from start to finish will be about three hours in Oregon. The moon will begin covering the sun at about 10:30 a.m. and move away at about 12:15 p.m. Viewers in Eugene ...
The most recent total solar eclipse in Kentucky was on April 8, 2024, and the most recent partial solar eclipse was on October 14, 2023 (not counting April 8). The next annular solar eclipse will occur on July 23, 2093; and the next partial solar eclipse will occur on August 12, 2026. [18]