9705 Drummen (3137 T-3) is a main-belt asteroid discovered on October 16 1977 by C. J. van Houten and I. van Houten-Groeneveld on Palomar Schmidt plates taken by T. Gehrels.It is named after Mat Drummen (1945-) former manager of ‘Stichting de Koepel’ in Utrecht (a Dutch institute for the popularisation of astronomy) and author of the ‘Sterrengids’ a Dutch astronomy year book.
apoapsis (km)
5.15428e+11
orbital period (μ)
1.68196e+08
periapsis (km)
3.97477e+11
absolute magnitude
13.5
discoverer
Cornelis Johannes van Houten, Ingrid van Houten-Groeneveld
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