Ph.D., University of Chicago, 1990

Professor, University of Virginia

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Research Interests:

* Galactic structure, kinematics and chemistry
* Stellar populations
* Star clusters and dwarf galaxies
* Galaxy evolution
* Quasars
* Interstellar dust
* "Near-field" cosmology
* Astrometry, photometry, and spectroscopy
* Optical, infrared and radio astronomy
* Instrumentation
* McCormick Museum
* History of Astronomical Measuring Engines
* History of Astronomy