3240 Laocoon (1978 VG6) is a Jupiter Trojan discovered on November 7, 1978 by Eleanor F. Helin and Schelte J. Bus at Palomar.
Photometric observations of this asteroid during 1996 were used to build a light curve showing a rotation period of 11.312 ± 0.024 hours with a brightness variation of 0.55 ± 0.02 magnitude.
- ^ Mottola, Stefano; Di Martino, Mario; Erikson, Anders; Gonano-Beurer, Maria; Carbognani, Albino; Carsenty, Uri; Hahn, Gerhard; Schober, Hans-Josef; Lahulla, Felix; Delbò, Marco; Lagerkvist, Claes-Ingvar (May 2011). "Rotational Properties of Jupiter Trojans. I. Light Curves of 80 Objects". The Astronomical Journal 141 (5): 170. Bibcode:2011AJ....141..170M. doi:10.1088/0004-6256/141/5/170.