We
point out that a revised version of the UCAC2, to be called the
UCAC3, is currently under construction by USNO. The new proper
motions will be based on an improved reconstruction of the
yellow-sky catalogue, one that makes explicit magnitude-equation
corrections.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.