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We report 1606 new proper motion systems in the southern sky (declinations-90 degrees to -47 degrees with 0.40 arcsec yr^-1 > mu >= 0.18 yr^-1. Thiseffort is a continuation of the SuperCOSMOS-RECONS (SCR) proper motion searchto lower proper motions than reported in Papers VIII, X, XII, and XV in thisseries. Distance estimates are presented for the new systems, assuming that allstars are on the main sequence. We find that 31 systems are within 25 pc,including two systems -- SCR 0838-5855 and SCR 1826-6542 -- we anticipate to bewithin 10 pc. These new discoveries constitute a more than ten-fold increase innew systems found in the same region of sky searched for systems with mu >=0.40 arcsec yr^-1, suggesting a happy hunting ground for new nearby slowerproper motion systems in the region just north (declinations -47 degrees to 0degrees, much of which has not been rigorously searched during previousefforts.Comment: 30 pages, 8 figures (reduced quality), accepted 2 March 2007 for  publication in Astronomical Journa

the astronomical journal

The Solar Neighborhood. XVIII. Discovery of New Proper-Motion Stars with 0.40" yr<sup>-1</sup>&gt; μ ≥ 0.18" yr<sup>-1</sup>between Declinations -90° and -47°

The Solar Neighborhood. XVIII. Discovery of New Proper-Motion Stars with 0.40" yr-1> μ ≥ 0.18" yr-1between Declinations -90° and -47°

The Solar Neighborhood. XVIII. Discovery of New Proper-Motion Stars with 0.40" yr^-1> μ ≥ 0.18" yr^-1between Declinations -90° and -47°