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The Re-Processing Results of Photographic Observations of Asteroids with GAIA Catalog at the Mao Nas of Ukraine
Andruk, V. M.; Shatokhina, S. V.; Kazantseva, L. V.
In total, about 4,500 asteroid po-sitions were determined from photographic observations conducted at the MAO NAS of Ukraine in 1952-1996. These are the early positions of the selected minor planets, mostly bright, the observations of which were initiated by the founders of the ORBITA observational program and were made in 1952-1986. The second la…
Spectroscopic Investigations of Galactic Clusters with Associated Cepheid Variables. III. Collinder 394 and BB SGR
Kniazev, A. Yu.; Miroshnichenko, A. S.; Mishenina, T. V. +4 more
We present the results of a spectroscopic and photometric investigation of 20 objects from the open cluster Collinder 394, which contains the Cepheid BB Sgr. Besides the Cepheid, we studied tree K-giants, four B-giants, and twelve B-A-F main sequence stars. Radial velocities (RV), v sin i, Teff, log g, were determined using spectroscopi…
New Astrometric Reduction of the Supercosmos Plate Archive: First Results
Andruk, V. M.; Akhmetov, V. S.; Protsyuk, Yu. I. +2 more
The arrivals of the new more accuracy reference catalogs and development of new methods and approaches for reduction astrometric data give the new life for photographic plates archives. Gaia DR2 is not only a giant step in the astrometric accuracy allowing to measure new objects it also provides plates archives observed in the past with modern acc…