  In this paper we present the general spherically symmetric static solution to
the vacuum equations of Cotton gravity. The obtained metric solution reveals
the presence of singularities at the photosphere of a spherical source, which
probably obstruct the formation of the stellar Schwarzschild-radius black
holes. The solution is characterized by two integration constants, whose values
can be restricted by association with the Hubble horizon. We examine the
diverse features of the solution, including the long-range modifications to
Newton's force through the incorporation of the velocity-squared repulsive term
to model the dark energy.
