![]() The type of solar eclipse that happens during each season (whether total, annular, hybrid, or partial) depends on apparent sizes of the Sun and Moon. A binary star system can also produce eclipses if the plane of the orbit of its constituent stars intersects the observer's position.įor the special cases of solar and lunar eclipses, these only happen during an " eclipse season", the two times of each year when the plane of the Earth's orbit around the Sun crosses with the plane of the Moon's orbit around the Earth when that line of intersecting planes points near the Sun. 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. ![]() 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. An eclipse is the result of either an occultation (completely hidden) or a transit (partially hidden). ![]() Apart from syzygy, the term eclipse is also used when a spacecraft reaches a position where it can observe two celestial bodies so aligned. This alignment of three celestial objects is known as a syzygy. The shadow of an eclipse on Earth as seen from spaceĪn eclipse is an astronomical event that 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.
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