Astronomy and Astrophysics – Astrophysics
Scientist
Astronomy and Astrophysics
Astrophysics
Scientist
U.S.Naval Observatory
USRA,USNO
USRA / USNO
Universities Space Research Association
US Naval Observatory, 3450 Massachusetts Avenue, NW, Washington, DC 20392
U.S. Naval Observatory, 3450 Mass. Ave. NW, Washington, DC 20392, USA Naval Observatory, 3450 Massachusetts Avenue, NW, Washington, DC 20392-5420
US Naval Observatory
with Universities Space Research Association
A Joint Collaboration Between USNO and Brazil on the Astrometry of ICRF Sources.
Accurate Optical Positions of Extragalactic Radio Reference Frame Sources
Comparing Tycho-2 Astrometry with UCAC1
CTIO 0.9m observations of ICRF optical counterparts
Extragalactic optical-radio link research at USNO
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