We have used the Two Micron All Sky Survey and Palomar Observatory Sky Survey photographic plates, digitized by the US Naval Observatory's Precision Measuring Machine program, to derive proper motions over a 100 square degree, spatially complete region centered on the Praesepe open cluster. Proper-motion measurements spanned the magnitude range R~12-19, which covers most of the lower main sequence in Praesepe. The incidence of H{alpha} emission from moderate-resolution (~2600), red spectroscopy of 434 faint candidate members and 126 field control stars demonstrates that ~60%-80% of candidates within 2{deg} of the cluster center are genuine Praesepe members.

Cone search capability for table J/AJ/124/1570/table1 (Data for sources in Praesepe's region of the vector point diagram in Figure 3)

Cone search capability for table J/AJ/124/1570/table6 (Data for all field control stars observed with the WIYN telescope, at Kitt Peak Observatory)

Cone search capability for table J/AJ/124/1570/table5 (Data for all Praesepe candidates observed with the WIYN telescope, at Kitt Peak Observatory)