| Abstract | The Lick Northern Proper Motion (NPM) program determines absolute proper motions, measured with respect to an extragalactic reference frame, for selected stars in the blue magnitude range 9-18, north of declination -23 deg. Positions and photographic photometry are also measured. The final NPM catalog will contain some 300, 000 stars, whose motions are referred to some 70,000 galaxies. This paper, the first in a seri ... |
