摘要：AbstractThe kinematic parameters of the Galactic disk are redetermined based on open-cluster data. It is shown that the Bottlinger-Oort model of pure circular rotation can be confidently used to describe the observed motions of disk objects at least out to heliocentric distances of 3.5 kpc.
关键词：KeywordsGalaxy: diskGalaxy: fundamental parametersopen clusters and associations: general
