annual parallax

noun

1. See parallax

Example Sentences

The annual parallax of a heavenly body is the angle subtended at that body by the radius of the Earth’s orbit.

From Project Gutenberg

It should be explained that what is called the "annual parallax" of a star is only half its apparent displacement.

From Project Gutenberg

Half of this major axis, or, what comes to the same thing, the angle which the radius of the earth's orbit subtends as seen from the star, is called the star's "annual parallax."

From Project Gutenberg

The annual parallax of a star is the angle under which one would see the radius, or half-diameter, of the terrestrial orbit from it.

From Project Gutenberg

Here we have only to do with near stars for which the annual parallax is well determined.

From Project Gutenberg