GALANTE: finding all the optically accessible Galactic O+B+WR stars in
  the Galactic Plane
  GALANTE is an optical photometric survey with seven intermediate/narrow
filters that has been covering the Galactic Plane since 2016 using the
Javalambre T80 and Cerro Tololo T80S telescopes. The P.I.s of the northern part
(GALANTE NORTE) are Emilio J. Alfaro and Jes\'us Ma\'iz Apell\'aniz. and the
P.I. of the southern part (GALANTE SUR) is Rodolfo H. Barb\'a. The detector has
a continuous 1.4 degr x 1.4 degr field of view with a sampling of 0.55"/pixel
and the seven filters are optimized to detect obscured early-type stars. The
survey includes long, intermediate, short, and ultrashort exposure times to
reach a dynamical range close to 20 magnitudes, something never achieved for
such an optical project before. The characteristics of GALANTE allow for a new
type of calibration scheme using external Gaia, Tycho-2, and 2MASS data that
has already led to a reanalysis of the sensitivity of the Gaia G filter. We
describe the project and present some early results. GALANTE will identify the
majority of the early-type massive stars within several kpc of the Sun and
measure their amount and type of extinction. It will also map the Halpha
nebular emission, identify emission-line stars, and do other studies of low-
and intermediate-mass stars.
