5756 Wassenbergh

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Discovered by Cornelis Johannes van Houten, Ingrid van Houten-Groeneveld and Tom Gehrels
Discovery site Palomar Observatory
Discovery date 24 September 1960
MPC designation (5756) Wassenbergh
Named after
Henri Wassenbergh
6034 P-L
main-belt, Rafita
Orbital characteristics[1]
Epoch 13 January 2016 (JD 2457400.5)
Uncertainty parameter 0
Observation arc 20261 days (55.47 yr)
Aphelion 3.1673471 AU (473.82838 Gm)
Perihelion 1.9971013 AU (298.76210 Gm)
2.582224 AU (386.2952 Gm)
Eccentricity 0.2265965
4.15 yr (1515.6 d)
0° 14m 15.098s / day
Inclination 7.590507°
Physical characteristics
Dimensions 3.93 km[1]

5756 Wassenbergh (6034 P-L) is a Rafita main-belt asteroid discovered on September 24, 1960, by Cornelis Johannes van Houten, Ingrid van Houten-Groeneveld and Tom Gehrels at Palomar Observatory.[2]


In due course, this minor irregularly-shaped planetary body was named for Henri Wassenbergh, who was Professor of Air and Space Law at University of Leiden in the Netherlands from 1977 through 1994. The permanent designation was suggested by Prof. Wassenbergh's secretary and his colleagues at Leiden; and the announcement of this name was timed to coincide with his valedictory address at the university.[2] He had been Professor Extraordinarius of Air and Space Law at Leiden since 1977, and Professor Ordinarius since 1991.[3]


Wassenbergh, known to his friends and colleagues as "Or" Wassenbergh, is a Dutch academic and for many years, he was an official of Royal Dutch Airlines (KLM),[2] since 1967, he had been a member of the Air Transport Commission of the International Chamber of Commerce in Paris. Wassenbergh also participated in the European Centre for Space Law (ECSL) of the European Space Agency (ESA), the International Institute of Space Law of the International Astronautical Federation, the International Air Transport Association (IATA) Air Policy Advisory Group, the Société Française de Droit Aérien, the Netherlands branch of the Legal Committee of the International Civil Aviation Organization, and the Netherlands Interdepartmental Committee on Civil Aviation.[3] In this context, the title of one of his books seems prescient -- Principles of Outer Space Law in Hindsight.[4]


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