astrometry
1
9.9
- noun
- /əˈstrɒmətri/
- Specialized
- Fortunately, many programs of the High Speed Photometer will not be affected, and the astrometry capability of the Fine Guidance Sensors will apparently not be compromised at all.
- astrometry and photometry
- the precise measurement of astrometry
- the science of astrometry
Examples
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Many astronomers rely on astrometry to discover new exoplanets by measuring slight changes in the positions of stars.
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These, plus the ongoing astrometry program, will easily occupy all the time available and will return scientific results of great interest and utility.
Academic text (1990) -
Astrometry has not yet reached a precision sufficient to find new planets on its own.
Academic text (2004) -
I can interrupt the photometric measurements for about 15 minutes and do some astrometry.
Academic text (2000) -
All of these astrometry activities are only supplements to our most important and interesting program—photometry of near-Earth asteroids.
Academic text (2000) -
Currently, the Ondrejov team led by Petr Pravec is among the most reputable teams involved in near-Earth asteroid photometry and astrometry.
Academic text (2000) -
In the first attempts to look for these wobbles, astronomers measured the positions of the stars with painstaking care, using the most distant stars as their unmoving reference points (a technique called astrometry).
Academic text (2000) -
The name of this first automated astrometry orbiter honors Hipparchus of Nicea, who diligently compiled a catalog of the celestial positions and brightnesses of more than a thousand stars in the second century BC.
Academic text (1997) -
The study of astrometry is crucial for understanding the movement of celestial bodies in our universe.
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Astrometry allows scientists to accurately map the positions of distant stars and galaxies.
How Scientific
Surface Forms
Morphology
astrometry = astro + metr + y
The word is a clear classical formation meaning the measurement of celestial bodies, built transparently from astro- and metr- with the noun-forming ending -y.
Etymology
The word astrometry comes from astro- meaning 'star' and -metry meaning 'measure', just like astronomy and geometry. So astrometry is literally 'measuring stars' and means measuring where stars and other objects in space are and how they move.