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  1. More Images

    Eclipse

    An eclipse is an astronomical event which occurs when an astronomical object or spacecraft is temporarily obscured, by passing into the shadow of another body or by having another body pass between it and the viewer. This alignment of three celestial objects is known as a syzygy. An eclipse is the result of either an occultation or a transit. A "deep eclipse" is when a small astronomical object is behind a bigger one. The term eclipse is most often used to describe either a solar eclipse, when the Moon's shadow crosses the Earth's surface, or a lunar eclipse, when the Moon moves into the Earth's shadow. However, it can also refer to such events beyond the Earth–Moon system: for example, a planet moving into the shadow cast by one of its moons, a moon passing into the shadow cast by its host planet, or a moon passing into the shadow of another moon. A binary star system can also produce eclipses if the plane of the orbit of its constituent stars intersects the observer's position. Wikipedia

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  3. public.nrao.edu

    National Radio Astronomy Observatory

    https://public.nrao.edu › eclipse-basics

    An eclipse is an amazing celestial event which has filled humans with wonder and awe throughout history. As astronomers have studied eclipses, they have introduced a great deal of terminology to describe the various types and parts of an eclipse. You can find definitions regarding the two categories of eclipses below.
  4. Learn how solar and lunar eclipses occur when the Sun, Moon and Earth are aligned, and how they differ in appearance and frequency. Find out why solar eclipses are rare and lunar eclipses are more common, and how Earth's shadow affects the Moon's colour.
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