astrometry

American  

[uh-strom-i-tree] / əˈstrɒm ɪ tri /

noun

1. the branch of astronomy that deals with the measurement of the positions and motions of the celestial bodies.

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astrometry British  

/ əˈstrɒmɪtrɪ /

noun

1. the branch of astronomy concerned with the measurement of the position and motion of celestial bodies

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astrometry Scientific  

/ ə-strŏm′ĭ-trē /

1. The scientific measurement of the positions and motions of celestial bodies.

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Other Word Forms

• astrometric
  adjective
• astrometrical
  adjective

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Etymology

Origin of astrometry

First recorded in 1865–70; astro- + -metry

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Example Sentences

See Examples For:

astrometry

The ESA astrometry satellite Gaia provides an ideal data set for this kind of big-data galactic archeology.

From Science Daily ● Mar. 21, 2024

Fusing astrometry and direct imaging not only opens the door to finding more targets; it also eliminates some of this guesswork by revealing each newfound planet’s orbit and mass, along with its atmosphere.

From Scientific American ● Apr. 13, 2023

But astrometry can reveal planets, too: A planet orbiting a star can cause the star’s position to cyclically shift ever-so-slightly, oscillating back and forth in the plane of the sky.

From Scientific American ● Apr. 13, 2023

We performed relative astrometry between our WFC3/F160W image and our Chandra observations.

From Nature ● Oct. 15, 2017

He employed in his discussion the radial velocities of 280 stars, spectroscopically Astrophysics. determined; and the upshot signally exemplified the community of interests between the rising science of astrophysics and the ancient science of astrometry.

From Encyclopaedia Britannica, 11th Edition, Volume 2, Slice 7 "Arundel, Thomas" to "Athens" by Various

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