A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
From: Dave Walden
Date: 2020 Sep 24, 15:55 -0700
The table from the NASA web site appears to be mislabled. The explanatory text includes:
Proper Motion in Right Ascension for epoch and equinox J2000.0, on the system of FK5, given in seconds of time per Julian year. For FK5 stars rounded FK5 data are given.