Discovered by P. Wild MPC designation 1748 Mauderli Orbital period 2,849 days Orbits Sun Discovery site Zimmerwald Observatory | Discovery date 7 September 1966 Minor planet category main-belt · Hilda Discovered 7 September 1966 Discoverer Paul Wild Asteroid group Asteroid belt | |
Named after Sigmund Mauderli (astronomer) Alternative names 1966 RA · 1927 SF
1934 ND1 · 1938 DL2
1943 TP · 1951 UH
1951 XD · A922 BC Similar Sun, 3552 Don Quixote, 81P/Wild | ||
1748 Mauderli, provisional designation 1966 RA, is a dark and very reddish Hildian asteroid from the outermost region of the asteroid belt, approximately 45 kilometers in diameter. It was discovered on 7 September 1966, by astronomer Paul Wild at Zimmerwald Observatory near Bern, Switzerland.
Mauderli is a member of the Hilda family of asteroids which stay in a 3:2 resonance with the gas giant Jupiter. Among the Hilda family, it is one of its members with the highest amplitude of libration relative to the stable periodic orbit. It is also the reddest among the known D-type asteroids.
The asteroid orbits the Sun at a distance of 3.1–4.8 AU once every 7 years and 10 months (2,853 days). Its orbit has an eccentricity of 0.22 and an inclination of 3° with respect to the ecliptic. Mauderli was first identified as A922 BC at Heidelberg Observatory in 1922, extending the body's observation arc by 44 years prior to its official discovery observation.
Three rotational light-curves gave a rotation period of 6.00 hours with a brightness variation between 0.10 and 0.12 magnitude (U=n.a/3/2-). Based on observations by the Akari, WISE/NEOWISE spacecraft and missions, it has an albedo of 0.04–0.06. The Collaborative Asteroid Lightcurve Link assumes a standard albedo for carbonaceous asteroids of 0.057 and calculates a diameter of 40.32 kilometers based on an absolute magnitude of 10.7.
The minor planet was named by the discoverer in honor of Sigmund Mauderli (1876–1962), astronomer and director of the Astronomical Institute at the University of Bern from 1921–1946. He devoted much of his time to orbit determination and perturbation computing of minor planets for the Astronomisches Rechen-Institut in Germany. Naming citation was published before November 1977 (M.P.C. 2971).