This  system  is  unusual,  a  close
binary pair.
  The  symbols on the right are also
rare,  indicating (top) a black hole
and (below) a protostar.  All are of
great scientific interest, and their
systems    may    contain   valuable
minerals. Locations are noted in the
statistical  routine.  (Menu  option
"D").  NB: Black holes, Proto-stars,
and Ring Worlds can only be added in
the  editing  phase.   Binaries  can
occur naturally.