trigonometric parallax

noun

: the direct measurement of the parallax or distance of a celestial body from a baseline of known length (as the earth's radius or the radius of its orbit) and the angles at the ends of the baseline giving reliable results for stars up to distances of about 100 light-years

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Cite this Entry

“Trigonometric parallax.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/trigonometric%20parallax. Accessed 27 Jan. 2023.

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