Discovered by E. Delporte MPC designation 1848 Delvaux Discovered 18 August 1933 Discoverer Eugène Joseph Delporte Asteroid group Asteroid belt | Discovery date 18 August 1933 Orbits Sun | |
Named after (sister-in-law of)Georges Roland Alternative names 1933 QD · 1936 DH1948 SF · 1948 SK1951 GV · 1952 ML1953 TU1 · 1953 VE11956 GL · 1972 QN1975 FV · A912 FA Similar 1221 Amor, 2101 Adonis, Sun, 208 Lacrimosa, 277 Elvira | ||
1848 Delvaux, provisional designation 1933 QD, is a stony Koronian asteroid from the outer region of the asteroid belt, approximately 17 kilometers in diameter. It was discovered on 18 August 1933, by Belgian astronomer Eugène Delporte at the Royal Observatory of Belgium in Uccle, Belgium.
The stony S-type asteroid belongs to the Koronis family, a collisional group consisting of a few hundred known bodies with nearly ecliptical orbits. It orbits the Sun at a distance of 2.7–3.0 AU once every 4 years and 10 months (1,777 days). Its orbit has an eccentricity of 0.05 and an inclination of 1° with respect to the ecliptic. First identified as A912 FA at Simeiz Observatory in 1912, the body's observation arc begins 3 day after its official discovery, as non of the previous observations were used.
Delvaux has a well-determined rotation period of 3.63 to 3.65 hours with a brightness variation of 0.57–0.69 magnitude (U=3/3/3/3). The Collaborative Asteroid Lightcurve Link (CALL) adopts a period of 3.637 hours.
According to the surveys carried out by the Japanese Akari satellite and NASA's Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, Delvaux measures between 16.66 and 17.51 kilometers in diameter, and its surface has an albedo of 0.233 to 0.461. CALL assumes a standard albedo for members of the Koronis family of 0.24, and calculates a diameter of 17.12 kilometers based on an absolute magnitude of 11.0.
This minor planet was named after the sister-in-law of Georges Roland, astronomer at the observatory in Uccle and known as the co-discoverer of the comet Arend–Roland. Naming citation was published on 8 April 1982 (M.P.C. 6832).