parallax

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Related to parallaxes: stellar parallax
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the apparent displacement of an object as seen from two different points that are not on a line with the object

References in periodicals archive ?
Parallaxes grow smaller as objects grow more distant, and the Moon is the only object close enough to give a measurable parallax to the unaided eye.
It would be capable of measuring parallaxes of objects at kiloparsec distances with 10 percent accuracy.
But this measured result is not just the parallax of Venus; it's the combined parallaxes of Venus and the Sun.
But their example regarding the first measurement of stellar parallax might inadvertently leave readers with the impression that Friedrich Bessel, who measured the parallax of 61 Cygni in 1838, was scooped by both Thomas Henderson and Wilhelm Struve, who had previously measured the parallaxes of Alpha Centauri and Vega, respectively.
It measured the parallaxes of 118,218 bright stars to the extraordinary precision of about 1 milliarcsecond.