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Information × Registration Number 0218U003138, 0116U001093 , R & D reports Title The study of star systems of the Galaxy by using created astrometric catalogs and resources of virtual observatories popup.stage_title Head Protsyuk Yuri Ivanovich, Кандидат фізико-математичних наук Registration Date 23-01-2018 Organization Research Institute "Mykolaiv Astronomical Observatory" popup.description2 With the aid of KT-50 telescope, equipped with a charge-coupled device (CCD), observations of 794 stellar open clusters (SOC) were conducted. More than 5.5 thousand digital images of selected areas of the celestial sphere were obtained. Digital data processing of the obtained images around 260 SOC had been carried out, and a catalogue of stars for the mean epoch of 2016.9 was compiled. The catalogue contains 2.8 million stars up to 16 Rmag. Standard error of equatorial coordinates is ±30 mas in the system of UCAC-4 catalogue. With the help of the Southern African Large Telescope (SALT), blue and red spectra were obtained for 98 stars, belonging to 9 SOC and associations, whose members are classical cepheids. All spectra were processed. For stars of two SOC - Trumpler 35 and NGC 5662, fundamental stellar parameters, such as radial velocity (RV), effective atmospheric temperature (Teff), gravity gravity on the surface (log g), metallicity (Fe / H) were obtained. Observations of Trumpler 35 were also conducted to determine the coordinates of stars that are part of it. In the framework of international cooperation on spectral studies of yellow variables and supergiants of the Galaxy, with the help of small telescopes with low resolution, observations were conducted, and estimates of radial velocity for low amplitude cepheid Alpha Ursae Minoris (Pole Star), which is a member of unnamed SOC, were obtained. Software for analyzing the GAIA-DR1 catalogue was created, and the mean parallaxes were found for the stars around 154 SOC from our observation list. New observations for 18 double and multiple stellar systems were obtained. Measurement of position angles and angular distances were conducted for more than 200 double stars from the Washington Double Star (WDS) catalog. The standard errors of position angle and angular distance are ±0.2° and ±0.06" respectively. Results of measurements for 194 double star systems have been published in the Journal of Double Star Observations, and were added to the WDS catalog. About 1700 photo plates from the RI "MAO" archive were scanned. About 1.8 thousand digital images of photo plates from the RI "MAO" and other observatories archives were processed. Information about more than 300 digital images has been updated in the MAO database of photographic observations, which includes 8815 records and preview images with a resolution of 300 and 600 dpi. Database of CCD observations was updated on the MAO web site. In accordance with the standards of IVOA, the database of the Ukrainian Virtual Observatory has been integrated into the web interface of Aladin application, in particular the database of photographic plates (more than 40 thousand records), CCD database (more than 120 thousand records). Product Description popup.authors Бодрягін Данило Володимирович Ковальчук Олександр Миколайович Ковилянська Ольга Едуардівна Крючковський Віталій Федорович Мажаєв Олександр Ернестович Майгурова Надія Василівна Процюк Світлана Володимирівна Усенко Ігор Олександрович popup.nrat_date 2020-04-02 Close