  Based on astrometric data from Gaia DR2, we employ an unsupervised machine
learning method to blindly search for open star clusters in the Milky Way
within the Galactic latitude range of |b| < 20 degrees. In addition to 2,080
known clusters, 74 new open cluster candidates are found. In this work, we
present the positions, apparent radii, parallaxes, proper motions and member
stars of these candidates
(https://cdsarc.u-strasbg.fr/ftp/vizier.submit//new_OC/). Meanwhile, to obtain
the physical parameters of each candidate cluster, stellar isochrones are fit
to the photometric data. The results show that the apparent radii and the
observed proper motion dispersions of these new candidates are consistent with
those of open clusters previously identified in Gaia DR2.
