6553 P-L. Discovered 1960 Sept. 24 by C. J. van Houten and I. van Houten-Groeneveld at Palomar.

Named in honor of Bengt Strömgren {1908–1987} on the occasion of his 70th birthday. This renowned Danish astronomer was an authority in the field of stellar structure and stellar evolution. He served as director of the Yerkes Observatory during 1951–1957 and as president of the IAU during 1970–1973. (M 4547)

Obituaries published in Astron. Tidsskr., Årg. 20, Nr. 4, p. 175–177 (1987); Messenger, No. 49, p. 1, 43–44 (1987); Sterne Weltraum, 26. Jahrg., Nr. 12, p. 677 (1987); Phys. Today, Vol. 41, No. 3, p. 112–114 (1988); Q.J.R. Astron. Soc., Vol. 29, No. 2, p. 282–284 (1988); Mitt. Astron. Ges., Nr. 73, p. 5–7 (1990); C.R. Acad. Sci., Sér. Gén., Vie Sci., Tome 6, p. 609–610 (1989); IAU Today (20th General Assembly, Baltimore, 1988), No. 3, p. 2, 8 (1988).