An Etymological Dictionary of Astronomy and Astrophysics

A → black hole that possesses only mass (not electric charge) and
rotates about a central axis. It has an → ergosphere and a → stationary limit.

See also: Named after the New Zealand mathematician Roy P. Kerr (1934-) who, in 1963, was the
first to solve the → field equationss of Einstein’s theory of → general relativity
for a situation of this kind; → black hole.