Astrometric
Definition
Belonging to astrometry, relating to astrometry; referring to the precise geometric measurement of positions, angular distances, and proper motions of celestial bodies on the celestial sphere. This term defines the methods, coordinate catalogs, instruments (such as scanning telescopes), or satellite data (such as those provided by the Gaia mission) used to establish fundamental star charts.
Bilingual Equivalents
- Astrometric
- Astrometrical
Grammatical & Source Details
| Inflection Type | Variable adjective with standard masculine, feminine, and structural plural variations. |
| Formation | Derived from the prefixoid 'astro-' and the descriptive adjective 'metric', referencing spatial coordinate measurement. |
| Spelling / Pronunciation | [ˌæs.trə.ˈme.trɪk] |
| Source | Academic Guide to Space Astrometry and Reference Frames |
Contextual Usage Examples
RO: Satelitul Gaia a transmis un volum uriaș de date astrometrice, revoluționând înțelegerea structurii Căii Lactee.
EN: The Gaia satellite transmitted a huge volume of astrometric data, revolutionizing our understanding of the Milky Way's structure.
RO: Echipa a realizat o reducere astrometrică de mare precizie pentru a confirma poziția exactă a noii comete.
EN: The team performed a high-precision astrometric reduction to confirm the exact position of the new comet.
RO: Eroarea astrometrică a fost redusă considerabil prin utilizarea tehnicilor de optică adaptivă instalate pe telescop.
EN: The astrometric error was considerably reduced by utilizing adaptive optics techniques installed on the telescope.
Idioms & Phrases
Catalog astrometric / Astrometric catalog
RO: Bază de date astronomică ce conține pozițiile exacte, mișcările proprii și paralaxele pentru milioane de corpuri cerești.
EN: An astronomical database containing precise positions, proper motions, and parallaxes for millions of celestial bodies.
Reducere astrometrică / Astrometric reduction
RO: Proces computațional prin care pixelii unei imagini digitale sunt transformați în coordonate cerești reale (ascensie dreaptă și declinație).
EN: A computational process through which pixels of a digital image are transformed into real celestial coordinates (right ascension and declination).
Precizie astrometrică / Astrometric precision
RO: Gradul de acuratețe, măsurat de obicei în miliarcsecunde, cu care este determinată poziția unui obiect de-a lungul timpului.
EN: The degree of accuracy, usually measured in milliarcseconds, with which an object's position is determined over time.
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