annual parallax


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Related to annual parallax: stellar parallax
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Synonyms for annual parallax

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

References in periodicals archive ?
As the Earth moves through its orbit, stars should increase and decrease in magnitude, and their relative positions should change, yet no one had detected this annual parallax.
This proves their immense height, which makes the annual parallax vanish from before our eyes.
For two centuries, astronomers since Galileo and his student Benedetto Castelli had sought to detect the annual parallax motion that nearby stars ought to show if Earth were circling the Sun.
The team used the worldwide Very Long Baseline Array (VLBA) to measure the annual parallax shift of four compact radio sources in the nebula.
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