Catalog of Galactic OB Stars

Abstract

An all-sky catalog of Galactic OB stars has been created by extending the Case-Hamburg Galactic plane luminous-stars surveys to include 5500 additional objects drawn from the literature. This work brings the total number of known or reasonably suspected OB stars to over 16,000. Companion databases of UBVβ photometry and MK classifications for these objects include nearly 30,000 and 20,000 entries, respectively.