The owner of Coney Island's landmark Astroland amusement park is calling it quits.

The park closed permanently Sept. 7. Carol Albert's family has owned the Brooklyn amusement park for almost a half-century.

Albert said she is giving up on negotiating a two-year lease with Thor Equities, the developer that owns the seaside property.

Thor spokesman Stefan Friedman said the company is disappointed. He said other entertainment will be "fully open for business in the summer of 2009."

The decision does not affect the Cyclone roller coaster and the Wonder Wheel. They are designated as historic landmarks.