3309 Brorfelde is an inner main belt asteroid. It is a member of the Hungaria family. It was discovered on 28 January 1982 by K. S. Jensen, at Brorfelde Observatory in Denmark, for which it was named.
Brorfelde measures approximately 6 km in diameter.
In 2005 it was reported that lightcurve observations indicate the possibility of a moon orbiting Brorfelde. In 2006 it was confirmed at the Palmer Divide Observatory that 3309 Brorfelde is a binary asteroid.
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