Key points are not available for this paper at this time.
A list is presented of all trigonometric parallaxes, together with the relevant photometry, which have been determined since 1965 at the U.S. Naval Observatory. The material has been rereduced to reflect the high precision obtainable from these data. A few of the determinations have been updated with additional plate material.
Harrington et al. (Tue,) studied this question.