Jan Oort, Astronomer

8. International contacts

32. J.H. Oort as a young researcher, at a meeting of the American Astronomical Society, Poughkeepsie, N.Y., Vassar College, December 1923. Oort is standing in the centre, on the one but last row. Near him are P. van de Kamp and W.J. Luyten.

33. J.H. Oort in discussion with W. Baade on a boat trip at the General Assembly of the IAU (International Astronomical Union), Stockholm, 1938.

34. The beginnings of ESO (European Southern Observatory), Groningen 1953. Discussions during an excursion by boat on the IJsselmeer. Left to right: Vladimir Kourganoff, J.H. Oort, Harold Spencer-Jones.

35. J.H. Oort lecturing at the inauguration of the ESO building in Garching bei München, 1981. Left to right (as if seen by Oort): unknown, Ch. Fehrenbach, D. Sciama, B. Strömgren, O. Heckmann.

36. At the General Assembly of the IAU, Moscow, 1958. In the foreground, left to right: A. Massevitch, A. Danjon, J.H. Oort.

37. Diploma of the Royal Society of London, 1959 (Loan Academisch Historisch Museum Leiden)

38. Honorary promotion in Cambridge, July 25, 1960. Solemn procession, Oort at the right of the centre. Photograph by Cambridge Daily News

39. Honorary promotion in Cambridge, July 25, 1960, the Laudatio (1960)

40. Vetlesen certificate of Columbia University New York, 1966 (Loan Academisch Historisch Museum Leiden)

41. The Kyoto Prize Certificate 1987 (Loan Academisch Historisch Museum Leiden)