stellar parallax

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Noun

stellar parallax - the heliocentric parallax of a star

annual parallax, heliocentric parallax - the parallax of a celestial body using two points in the earth's orbit around the sun as the baseline

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References in periodicals archive ?

Yet we observe no semiannual differences in stellar magnitude and no stellar parallax. Such absence of observed change implies the stars' immense distances.

Setting Aside All Authority: Giovanni Battista Riccioli and the Science Against Copernicus in the Age of Galileo

It's looking for stellar parallax, the tiny apparent annual looping in a star's position caused by the spacecraft's moving viewpoint as it travels with Earth around the Sun.

Gaia maps a 1,000,000,000+ stars

Galileo's discoveries did not settle the issue of the truth of the Copernican view of the earth's motion, given that there was some astronomical counterevidence, mainly the failure to detect an annual stellar parallax and the fact that the physics of a moving earth had not been explicitly articulated.

Finocchiaro, Maurice. The Trial of Galileo: Essential Documents

The substantial star-light deflection causes very small visible stellar parallax (visible star position deflection as Earth orbits the Sun).