Astronomy and Astrophysics – Astronomy
Scientific paper
Apr 1995
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995a%26at....7..107b&link_type=abstract
Astronomical and Astrophysical Transactions, vol. 7, Issue 2, pp.107-109
Astronomy and Astrophysics
Astronomy
Photographical Astrometry, Astrophotoplates, Hypersensibility Of Hydrogen
Scientific paper
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.
Bronnikova N. M.
Mikhailov D. K.
Mikhailova O. M.
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