Discovered by Wilhelm Lorenz Alternative names 1908 EP Aphelion 3.4928 AU (522.52 Gm) Discovered 28 October 1908 Argument of perihelion 42.025° Discoverer Wilhelm Lorenz | Discovery date 28 October 1908 Observation arc 114.81 yr (41936 d) Semi-major axis 2.9208 AU (436.95 Gm) Inclination 13.511° Orbits Sun Asteroid group Asteroid belt | |
Discovery site Heidelberg-Königstuhl State Observatory | ||
674 Rachele is a minor planet orbiting the Sun. It was discovered by Wilhelm Lorenz on October 28, 1908 in Heidelberg, and was named by orbit computer Emilio Bianchi after his wife. This is classified as an S-type asteroid, indicating a stony composition.
Measurements made using the adaptive optics system at the W. M. Keck Observatory give a size estimate of 89 km. It has a size ratio of 1.08 between the major and minor axes. By comparison, measurements reported in 1998 from the IRAS observatory give a similar size of 97 km and a ratio of 1.15.
References
674 Rachele Wikipedia(Text) CC BY-SA