A study of photographic plates NT-1 for astrometry

Autor:	D. K. Mikhailov, N. M. Bronnikova, O. M. Mikhailova
Rok vydání:	1995
Předmět:	Physics Pluto law Photography Coma Cluster Astronomy Astronomy and Astrophysics Astrophysics Astrometry Pleiades Astrograph Instrumentation law.invention
Zdroj:	Astronomical & Astrophysical Transactions. 7:107-109
ISSN:	1476-3540 1055-6796
DOI:	10.1080/10556799508205397
Popis:	A study of nonsensibilized astrophotoplates NT-1 used for photography of celestial objects with long exposures, based on emulsions with the quasi-T-crystals of silver halogenides is made. The photographic plates should be hypersensibilized with hydrogen before observations. They have a fine graininness and a high resolving power. Since 1991, they have been used at Pulkovo for long-exposure photography of various celestial objects with the Normal Astrograph (Pluto, the Pleiades, the Coma cluster and radio sources) and were compared with ORWO plates.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::81001eedbc6ef155cf20e9ac736cb1cb https://doi.org/10.1080/10556799508205397 Zobrazit plný text záznamu