Galactic Structure with GSC-II Material
1998
Faint surveys of accurate colors and proper motions are fundamental for studying the physical and kinematical properties of the stellar populations in the Galaxy. A program designed to address such issues has been initiated on selected fields utilizing prototype material from the GSC-II project (see McLean et al. in this volume, p. 431). Photographic photometry V, B-V, V-Rc, is derived down to V = 18.5 with a precision of about 0.1 mag, together with absolute proper motions to σ μ ≃ 3 mas/yr.
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