21 March 1974
85.43 yr (31,205 days)
Cerro El Roble Station
(3708) 1974 FV1
21 March 1974
University of Chile
1974 FV1 · 1930 XF 1953 SG · 1965 TA 1974 HN3 · 1975 NQ
Minor planet category
Jupiter trojan (Trojan camp)
Solar System, Jupiter trojan, Sun
(3708) 1974 FV1 is a carbonaceous asteroid, classified as Jupiter trojan, approximately 80 kilometers in diameter. It was discovered on 21 March 1974, by staff members of the Cerro El Roble Observatory owned and operated by the Department of Astronomy of the University of Chile. It is the lowest-numbered unnamed minor planet.
This dark C-type Jovian trojan is orbiting in the trailing Trojan camp, at Jupiter's L5 Lagrangian point 60° behind its orbit. It orbits the Sun at a distance of 4.4–6.0 AU once every 11 years and 11 months (4,354 days). Its orbit has an eccentricity of 0.16 and an inclination of 13° with respect to the ecliptic. The first precovery was taken at Lowell Observatory in 1930, extending the asteroid's observation arc by 44 years prior to its discovery.
In January 2015 and February 2016, two rotational light-curve for this Jovian trojan were obtained from photometric observations by Robert Stevens at the U.S. Center for Solar System Studies (CS3), California. They rendered a rotation period of 7000652000000000000♠6.520±0.003 and 7000655000000000000♠6.55±0.01 hours with a brightness amplitude of 0.31 and 0.20 in magnitude, respectively (U=3-/n.a.). The results concur with a previously obtained light-curve by Stefano Mottola and Mario Di Martino, using the 1-meter ESO telescope at ESO's La Silla site, Chile, in February 1993. It gave a period of 7000655300000000000♠6.553±0.008 with an amplitude of 0.23 in magnitude (U=3).
According to the surveys carried out by the Infrared Astronomical Satellite IRAS, the Japanese Akari satellite, and the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, the asteroid's diameter measures 75.7 to 79.6 kilometers and its surface has a typically low albedo between 0.053 and 0.059. The Collaborative Asteroid Lightcurve Link (CALL) derives an albedo of 0.058 and a diameter of 79.7 kilometers.