USNO Bright Star Catalog, version 1

Abstract

USNO Bright Star Catalog (UBSC) is a new astrometric catalog of 1423 brightest stars covering the entire sky, which is published online. It is nearly complete to $V=3$ mag except for three stellar systems. A combined astrometric solution of the Hipparcos Intermediate Astrometry Data and two dedicated ground-based campaigns in 2013 -- 2020 is the basis for this catalog. The astrometric parameters for each star include position coordinates, parallax, proper motion components, and their covariances on the Hipparcos mean epoch 1991.25. 64 percent of the catalog are flagged as known or suspected double or binary stars. UBSC lists 68 stars missing in Gaia EDR3 and another 114 stars without Gaia parallaxes or proper motions. The formal precision achieved for proper motions is comparable to that of Gaia.

arXiv commentAccepted for publication in AJ. Astrometric catalog of 1423 bright stars will be published online

References in corpus (12)

• Gaia Data Release 2. Summary of the contents and survey properties
• Gaia Data Release 2: The astrometric solution
• Stellar and substellar companions of nearby stars from Gaia DR2 - Binarity from proper motion anomaly
• The Hipparcos-Gaia Catalog of Accelerations: Gaia EDR3 Edition
• The Hipparcos-Gaia Catalog of Accelerations
• Gaia Data Release 2: The Celestial reference frame (Gaia-CRF2)
• Unconstrained Astrometric Orbits for Hipparcos Stars with Stochastic Solutions
• How many Hipparcos Variability-Induced Movers are genuine binaries?
• Hipparcos red stars in the HpV_{T2} and VI_C systems
• A Global Astrometric Solution for Pan-STARRS referenced to ICRF2
• Correlated and zonal errors of global astrometric missions: a spherical harmonic solution
• Accurate Ground-based Astrometry of Naked-eye Stars: The United States Naval Observatory Bright-Star Astrometric Database