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USNO Bright Star Catalog, version 1
Norbert Zacharias, Valeri V. Makarov, Charles T. Finch +3
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 mag except f…
URAT South Parallax Results: Discovery of New Nearby Stars
Charlie Finch, Norbert Zacharias, Wei-Chun Jao
We present 916 trigonometric parallaxes and proper motions of newly discovered nearby stars from the United States Naval Observatory (USNO) Robotic Astrometric Telescope (URAT). Ob…
Parallax Results From URAT Epoch Data
Charlie Finch, Norbert Zacharias
We present 1103 trigonometric parallaxes and proper motions from the United States Naval Observatory (USNO) Robotic Astrometric Telescope (URAT) observations taken at the Naval Obs…
UrHip Proper Motion Catalog
Julien Frouard, Bryan N. Dorland, Valeri V. Makarov +2
Proper motions are computed and collected in a catalog using the Hipparcos positions (epoch 1991.25) and URAT1 positions (epoch 2012.3 to 2014.6). The goal is to obtain a significa…
UCAC4 Nearby Star Survey: A Search for Our Stellar Neighbors
Charlie Finch, Norbert Zacharias, John Subasavage +2
We use data from the U.S. Naval Observatory fourth CCD Astrograph Catalog (UCAC4) in combination with photometry from the AAVSO Photometric All-Sky Survey (APASS) and Two Micron Al…
UCAC3 Proper Motion Survey. II. Discovery Of New Proper Motion Stars In UCAC3 With 0.40" yr^-1 > mu >= 0.18" yr^-1 Between Declinations -47 deg and 00 deg
C. T. Finch, N. Zacharias, M. R. Boyd +2
We present 474 new proper motion stellar systems in the southern sky having no previously known components, with 0.40" yr^-1 > mu >= 0.18" yr^-1 between declinations -47 deg and 00…
UCAC3 Proper Motion Survey. I. Discovery of New Proper Motion Stars in UCAC3 with 0.40 "/yr > mu >= 0.18 "/yr between Declinations -90 deg and -47 deg
Charlie T. Finch, Norbert Zacharias, Todd J. Henry
Presented here are 442 new proper motion stellar systems in the southern sky between declinations -$90\degr$ and -47$\degr$ with 0$\farcs$40 yr 0$\farcs$18 yr$…
Ground-Based Astrometry 2010-2020
Todd J. Henry, David G. Monet, Paul D. Shankland +3
We discuss the opportunities for astronomical discovery via ground-based astrometry carried out in the United States during the 2010-2020 decade. We describe imminent scientific br…