Astrograph
Definition
An astronomical refractor or telescope with a wide field of view, specifically designed and optimized for astrophotography, sky mapping, and astrometry. This optical instrument lacks an eyepiece for direct visual observation, instead focusing light directly onto a photographic plate (historically) or a large-scale electronic digital sensor (CCD/CMOS), enabling the precise recording of star and galaxy positions.
Bilingual Equivalents
- Astrograph
- Astrophotographic telescope
Grammatical & Source Details
| Inflection Type | Neuter noun, regular plural structural forms used in modern optical and physical instrumentation catalogs. |
| Formation | Derived through modern scientific compounding of the Greek elements 'astron' (star) and '-graphein' (to write/record). |
| Spelling / Pronunciation | [ˈæs.trə.ɡræf] |
| Source | Manual of Astronomical Instrumentation and Observational Technology |
Contextual Usage Examples
RO: Vechiul astrograf al observatorului astronomic folosea plăci de sticlă pentru a documenta mișcarea proprie a stelelor apropiate.
EN: The astronomical observatory's old astrograph used glass plates to document the proper motion of nearby stars.
RO: Inginerii au calibrat un astrograf modern cu design optic Petzval pentru a obține imagini perfect plane pe un senzor full-frame.
EN: Engineers calibrated a modern astrograph with a Petzval optical design to obtain perfectly flat images on a full-frame sensor.
RO: Un astrograf performant a fost montat pe montura ecuatorială pentru a începe scanarea automată a asteroizilor.
EN: A high-performance astrograph was mounted on the equatorial mount to begin the automated scanning of asteroids.
Idioms & Phrases
Astrograf cu câmp larg / Wide-field astrograph
RO: Telescop special configurat pentru a captura porțiuni uriașe din cer într-o singură expunere, ideal pentru cartografiere.
EN: A telescope specially configured to capture massive portions of the sky in a single exposure, ideal for cartographic mapping.
Placă de astrograf / Astrograph plate
RO: Suport fotografic istoric din sticlă tratat cu emulsie fotosensibilă, utilizat pentru arhivarea datelor stelare înainte de era digitală.
EN: A historical glass photographic support treated with photosensitive emulsion, used for archiving stellar data before the digital era.
Optică de astrograf / Astrograph optics
RO:
EN: An internal system of corrector lenses that eliminates geometric distortions at the edges of the electronic sensor.
Latest Contextual News
No recent news found for this topic.