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Speckle interferometry of nearby multiple stars. IV. Measurements in 2004 and new orbits

Weigelt, G.; Rastegaev, D. A.; Balega, Yu. Yu. +4 more

The results of speckle interferometric observations of 104 binary and 6 triple stars performed at the BTA 6 m telescope in 2004 October are presented. Nearby low-mass stars are mostly observed for the program, among which 59 there are new binaries recently discovered by the Hipparcos astrometric satellite. Concurrently with the diffraction-limited…