6533 P-L. Discovered 1960 Sept. 24 by C. J. van Houten and I. van Houten-Groeneveld at Palomar.

Named for Circus pygargus, or Montagu’s harrier. {It belongs to the family of the Accipitridae and is on the Dutch Red List of birds endangered in the Netherlands.} (M 33792; M 34089)

See also the remarks to planet (8600).