On the Galactic CMB apex
  The hierarchy of motions that we are participating is well known, from the
Earth's motion around the Sun and Sun's motion in the Milky Way, up to the
Local Group's motion within the Virgo Supercluster of galaxies. The dipole
anisotropy of the Cosmic Microwave Background (CMB) enables to define Sun's
motion with respect to the CMB "absolute" frame. We now present evidence for
CMB Galactic dipole signal due to the Sun's motion in the Galaxy, by means of
Planck 2018 data and Gaia Early Data Release 3. The signal is weak and
frequency depended, the strongest is at 30 GHz, up to 7.6\sigma confidence. The
amplitude of the signal interpreted as Doppler caused, corresponds to velocity
$v \approx 225.5 \pm 16.2 \, km\, sec^{-1}$, in agreement with Solar system's
velocity with respect to the Galactic center. While the revealing of precise
coordinates of the apex will need further refined analysis at various bands,
the detected weak signal can indicate the appearance of a new cosmic scaling in
CMB, thus opening a link to a bunch of physical effects.
