1749 Telamon  1749 Telamon is a dark Jupiter Trojan from the Greek camp, approximately in diameter. It was discovered by German astronomer Karl Reinmuth at the Heidelberg Observatory on 23 September 1949, and named after Telamon from Greek mythology. The D-type asteroid is the principal body of the proposed Telamon family and belongs to the 60 largest Jupiter trojans. It has a rotation period of 17.0 hours and possibly a spherical shape. "Telamon" is a dark Jovian asteroid orbiting in the leading Greek camp at Jupiter's Lagrangian point, 60° ahead of the Gas Giant's orbit in a 1:1 resonance "(see Trojans in astronomy)". It orbits the Sun at a distance of 4.6–5.7 AU once every 11 years and 8 months (4,268 days; semi-major axis of 5.15 AU). Its orbit has an eccentricity of 0.11 and an inclination of 6° with respect to the ecliptic. The body's observation arc begins at with its first observation as "" at Turku Observatory in January 1941, more than 8 years prior to its official discovery observation at Heidelberg. Fernando Roig and Ricardo Gil-Hutton identified "Telamon" as the principal body of a small Jovian asteroid family, using the hierarchical clustering method (HCM), which looks for groupings of neighboring asteroids based on the smallest distances between them in the proper orbital element space. According to the astronomers, the Telamon family belongs to the larger Menelaus clan, an aggregation of Jupiter trojans which is composed of several families, similar to the Flora family in the inner asteroid belt. However this family is not included in David Nesvorný HCM-analysis from 2014. Instead, "Telamon" is listed as a non-family asteroid of the Jovian background population on the Asteroids Dynamic Site (AstDyS) which based on another analysis by Milani and Knežević. "Telamon" is a dark D-type asteroid according to the SDSS-based taxonomy and the surveys conducted by SMASS (Xu) and Pan-STARRS. According to the surveys carried out by the Infrared Astronomical Satellite IRAS, the Japanese Akari satellite and NASA's Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, "Telamon" measures between 64.90 and 81.06 kilometers in diameter and its surface has an albedo between 0.046 and 0.078.