  The acceleration transformations form a 4-parameter Abelian subgroup of the
conformal group of Minkowski spacetime. The passive interpretation of
acceleration transformations leads to a congruence of uniformly accelerated
observers in Minkowski spacetime. The properties of this congruence are studied
in order to illustrate the kinematics of accelerated observers in relativistic
physics. The generalization of this approach under conformal rescaling of the
spacetime metric is examined.
