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 Date: 2013-03-16 15:41:26Astronomy Hipparcos Proper motion Acceleration McCormick Observatory Radial velocity Stellar kinematics Parallax Cosmic distance ladder Astrometry Astrology Measurement |
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Secular Acceleration of Barnard’s Star Jennifer Lynn Bartlett (U. S. Naval Observatory) & Philip A. Ianna (University of Virginia) Abstract
![History Of Weather Observing at the Naval Observatory, Washington, D.C[removed]Current as of February 2005](https://www.pdfsearch.io/img/9e63b93bda8cb387b9b2c0b468678513.jpg "History Of Weather Observing at the Naval Observatory, Washington, D.C[removed]Current as of February 2005")
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