VizieR Online Data Catalog: 12 years positional measurements of 8 binaries (Mitrofanova+, 2020)

Speckle interferometric observations were carried out in 2007-2019 at the Big Telescope Alt-azimuth (BTA) of the Special Astrophysical Observatory of the Russian Academy of Sciences (SAO RAS) using a speckle interferometer based on Electron Multiplying CCD (EMCCD) detectors, namely the PhotonMAX-512B (until 2010), Andor iXon+ X-3974 (2010-2014), and Andor iXon Ultra 897 (since 2015).

The observation log is shown in Table1, most of the speckle images were obtained under good weather conditions with seeing 1"-2". Speckle interferograms were recorded with an exposure time of 20ms and a standard series of 1940 (until 2010) and 2000 images for each object. The following interference filters were used (central wavelength λ/bandpassΔλ): 550/20nm, 600/40nm, 800/100nm, and 900/80nm.

(4 data files).