Nearby Stars from the LSPM-North Proper-Motion Catalog. I. Main-Sequence Dwarfs and Giants within 33 Parsecs of the Sun

A list of 4,131 dwarfs, subgiants, and giants located, or suspected to belocated, within 33 parsecs of the Sun is presented. All the stars are drawnfrom the new LSPM-north catalog of 61,976 stars with annual proper motionslarger than 0.15''/yr$. Trigonometric parallax measurements are found in theliterature for 1,676 of the stars in the sample; photometric and spectroscopicdistance moduli are found for another 783 objects. The remaining 1,672 objectsare reported here as nearby star candidates for the first time. Photometricdistance moduli are calculated for the new stars based on the (M_V,V-J)relationship, calibrated with the subsample of stars which have trigonometricparallaxes. The list of new candidates includes 539 stars which are suspectedto be within 25 parsecs of the Sun, including 63 stars estimated to be withinonly 15 parsecs. The current completeness of the census of nearby stars in thenorthern sky is discussed in light of the new candidates presented here. It isestimated that 32% (18%) of nuclear burning stars within 33 parsecs (25parsecs) of the Sun remain to be located. The missing systems are expected tohave proper motions below the 0.15''/yr limit of the LSPM catalog.Comment: 13 pages, accepted for publication in the Astronomical Journa