Astrometric is a term that is commonly used in the field of astronomy. It is a word that is used to describe the measurement of the positions and movements of celestial objects. This article will provide a detailed definition and meaning of astrometric, its origin, and associations, as well as its synonyms and antonyms.
Definitions
Astrometric is defined as the measurement of the positions and movements of celestial objects. It is a branch of astronomy that deals with the precise measurement of the positions and motions of stars, planets, and other celestial objects. Astrometric measurements are used to determine the distances between celestial objects and to study the motions of stars and planets.
Origin
The word astrometric is derived from the Greek word “astron” meaning star and “metron” meaning measure. The term was first used in the late 19th century by astronomers who were working to develop more precise methods of measuring the positions and motions of celestial objects.
Meaning in different dictionaries
According to the Oxford English Dictionary, astrometric is defined as “relating to or involving the measurement of the positions and motions of celestial objects.”
The Merriam-Webster Dictionary defines astrometric as “of or relating to astrometry.”
Associations
Astrometric measurements are used in a variety of astronomical studies, including the search for exoplanets, the study of the structure and evolution of our galaxy, and the measurement of the expansion of the universe. Astrometric measurements are also used in the determination of the positions and motions of asteroids and comets.
Synonyms
Some synonyms of astrometric include astrometry, celestial mechanics, and positional astronomy.
Antonyms
There are no antonyms for astrometric as it is a specific term used in the field of astronomy.
The Same Root Words as Astrometric
The root words of astrometric are “astron” meaning star and “metron” meaning measure. Other words that share the same root words include astronomy, astrophysics, meteorology, and geometry.
Example Sentences
- The astrometric measurements of the star’s position were crucial in determining the presence of an exoplanet.
- The astrometric study of the galaxy’s structure revealed the presence of a massive black hole at its center.
- The astrometric observations of the asteroid’s position allowed for its precise orbit to be determined.