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Abstract:
Since 2009, the Großschwabhausen binary survey is being carried out
at the University Observatory Jena. This new imaging survey uses available time
slots during photometric monitoring campaigns, caused by nonphotometric weather
conditions, which often exhibit good atmospheric seeing. The goal of the project is
to obtain current relative astrometric measurements of the binary systems that are
listed in the Washington Visual Double Star Catalog.
Materials and Methods: For the survey we use the Refraktor-Teleskop-Kamera
at the University Observatory Jena to take imaging data of selected visual binary
systems.
Results: In this paper, we characterize the target sample of the survey, describe the
imaging observations and the astrometric measurements including the astrometric
calibration, and present the relative astrometric measures of 352 binaries that could
be obtained during the course of the Großschwabhausen binary survey, so far.