annual parallax
Britishnoun
Example Sentences
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So small a parallax value is of little reliability when it is directly computed from annual parallax observations, but is more trustworthy when derived with the spectroscopic method of Adams.
From Lectures on Stellar Statistics by Charlier, Carl Vilhelm Ludvig
The seventh and eighth columns give the annual parallax and the corresponding distance expressed in siriometers.
From Lectures on Stellar Statistics by Charlier, Carl Vilhelm Ludvig
It is improbable, however, that even these nearer stars are practicable subjects for the direct determination of annual parallax.
From Scientific American Supplement, No. 623, December 10, 1887 by Various
The annual parallax of a heavenly body is the angle subtended at that body by the radius of the Earth’s orbit.
From The Astronomy of Milton's 'Paradise Lost' by Orchard, Thomas Nathaniel
William Herschel began his observations of double stars in the hope of discovering an annual parallax of the stars.
From History of Astronomy by Forbes, George
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