word
parallax in astronomy
PAR-uh-laks in uh-STRON-uh-mee
ˈpærəlæks ɪn əˈstrɒnəmiːListen
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Syllable breakdown
parallaxinastronomy
Dictionary meaning
apparent shift in the position of a nearby star against the background of more distant stars when observed from opposite points of Earth's orbit around the Sun; the angle of this shift enables trigonometric calculation of stellar distances; the fundamental rung on the cosmic distance ladder
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