noun
definition
The branch of astronomy that deals with the measurement of the positions and motions of celestial bodies, particularly stars.
Examples of astrometry in a Sentence
Accurate optical astrometry would locate these peaks relative to the nucleus as defined by the radio core, and so resolve this ambiguity.
The subject of Astrophysics does not admit of so definite a subdivision as that of Astrometry.
A " best fit " between the detections and the optical background is used to precisely fix the astrometry of each field.
Careful calibration of the relative positioning and nonlinear optical distortion is required in order to do astrometry using WFC data.
The descriptive branch found its principle of development in the growing powers of the telescope, and had little to do with mathematical theory; which, on the contrary, was closely allied, by relations of mutual helpfulness, with practical astronomy, or " astrometry."
He employed in his discussion the radial velocities of 280 stars, spectroscopically determined; and the upshot signally exemplified the community of interests between the rising science of astrophysics and the ancient science of astrometry.
In 2002-2004 we performed astrometry of Potentially Hazardous Asteroids with non-zero impact probabilities in the next century.
Mask preparation In most cases, suitably accurate astrometry of the target field will not be available.
Bakos et al. calculated the equatorial coordinates for epoch and equinox 2000.0 using their astrometry and proper motion measurements.
The field we have defined is divisible into at least two parts, that of Astronomy proper, or " Astrometry," which treats of the motions, mutual relations and dimensions of the heavenly bodies; and that of Astrophysics, which treats of their physical constitution.