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Determination of Distances to Galaxies of the NGC 1023 Group. The Hubble Constant
Tikhonov, N. A.; Galazoutdinova, O. A.
On the basis of photographs from the 6 m Large Azimuthal Telescope and the Hubble Space Telescope, VRI photometry of stars in 11 galaxies in the NGC 1023 group has been carried out. The distances to these galaxies were determined by the method of brightest stars. The distances to NGC 925 and NGC 1023 were determined from the position of the top of…
Search for Star Groups in the Solar Neighborhood
Orlov, V. V.; Kazakevich, E. É.
Two methods are proposed for finding star groups in coordinate and velocity spaces, which were used to investigate stars of the Hipparcos Catalog with known radial velocities in the solar neighborhood with a radius of 125 pc. Thirteen probable nonrandom star groups in coordinate space and five moving groups in velocity space were found. These resu…