  One of the results of the Milky Way Star Clusters (MWSC) survey by Kharchenko
et al. (2013) was the detection of a slight under-density of old (ca. 1 Gyr)
clusters within the nearest kilo-parsec from the Sun. This under-density may be
due to an ineffectiveness in the detection of larger structures with lower
surface brightness. We report on our attempts to reveal such clusters. We
derived proper motions from a combination of Tycho-2 with URAT1, and obtained a
mean precision of about 1.4 mas/y per co-ordinate for 1.3 million stars north
of -20 degree declination. We cut the sky into narrow proper motion slices and
searched for spatial over-densities of stars in each slice. In optical and
near-infrared colour-magnitude diagrams stars from over-densities were than
examined to determine if they are compatible with isochrones of a cluster. We
estimated the field star contamination using our data and the Besancon Galactic
model.We detected 9 hitherto unknown open clusters in the vicinity of the Sun
with ages between 70 Myr and 1 Gyr, and distances between 200 and 500 pc.
