5550 P-L. Discovered 1960 Oct. 17 by C. J. van Houten and I. van Houten-Groeneveld at Palomar.

Named in honor of E. M. Berkhuijsen {1937– } of the Max-Planck-Institut für Radioastronomie, Bonn. Her fields of interest include continuum radio radiation of our Galaxy and other galaxies and the study of supernova remnants. (M 16885)