Planetary transits and occultations
http://dbpedia.org/resource/Planetary_transits_and_occultations an entity of type: Thing
The word "transit" refers to cases where the nearer object appears smaller than the more distant object. Cases where the nearer object appears larger and completely hides the more distant object are known as occultations. In astronomy, planetary transits and occultations occur when a planet passes in front of another object, as seen by an observer. The occulted object may be a distant star, but in rare cases it may be another planet, in which case the event is called a mutual planetary occultation or mutual planetary transit, depending on the relative apparent diameters of the objects.
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凌指的距離較近且視角較小的天體，經過距離較遠取視角較大的天體前方的情況。若較近的物體顯得較大，並完全遮蔽較遠物體的情況稱為掩。 在天文學，行星凌和掩發生在一顆行星經過另一個天體的前面時，觀察者所見到的現象。行星掩星通常是一顆遙遠的恆星被遮蔽，但在極少的情況下，它可能是另一顆行星。在這種情況下，該事件稱為行星互掩或行星互凌，這取決於天體的相對視直徑。
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Planetary transits and occultations
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行星凌和掩
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52242804
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1117159250
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The word "transit" refers to cases where the nearer object appears smaller than the more distant object. Cases where the nearer object appears larger and completely hides the more distant object are known as occultations. In astronomy, planetary transits and occultations occur when a planet passes in front of another object, as seen by an observer. The occulted object may be a distant star, but in rare cases it may be another planet, in which case the event is called a mutual planetary occultation or mutual planetary transit, depending on the relative apparent diameters of the objects.
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凌指的距離較近且視角較小的天體，經過距離較遠取視角較大的天體前方的情況。若較近的物體顯得較大，並完全遮蔽較遠物體的情況稱為掩。 在天文學，行星凌和掩發生在一顆行星經過另一個天體的前面時，觀察者所見到的現象。行星掩星通常是一顆遙遠的恆星被遮蔽，但在極少的情況下，它可能是另一顆行星。在這種情況下，該事件稱為行星互掩或行星互凌，這取決於天體的相對視直徑。
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9098
