| Discovery[1] | |
|---|---|
| Discovered by | M. Laugier |
| Discovery site | Nice Obs. |
| Discovery date | 8 November 1936 |
| Designations | |
| (1755) Lorbach | |
Named after | Anne Lorbach Herget (wife ofPaul Herget)[2] |
| 1936 VD · 1935 QA1 1936 UK · 1949 ED 1956 NA · 1960 EA 1965 AV · A924 PA | |
| main-belt · (outer) Eos[3] | |
| Orbital characteristics[1] | |
| Epoch 4 September 2017 (JD 2458000.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 92.72 yr (33,866 days) |
| Aphelion | 3.2391AU |
| Perihelion | 2.9443 AU |
| 3.0917 AU | |
| Eccentricity | 0.0477 |
| 5.44yr (1,986 days) | |
| 241.19° | |
| 0° 10m 52.68s / day | |
| Inclination | 10.707° |
| 157.11° | |
| 322.08° | |
| Physical characteristics | |
| Dimensions | 24.878±0.265 km[4] |
| 0.140±0.024[4] | |
| Tholen =S[1] B–V = 0.915[1] U–B = 0.360[1] | |
| 10.77[1] | |
1755 Lorbach, provisional designation1936 VD, is a stony Eoanasteroid from the outer region of theasteroid belt, approximately 25 kilometers in diameter.
It was discovered on 8 November 1936, by French astronomerMarguerite Laugier atNice Observatory in southeastern France,[5] and named after Anne Lorbach Herget, wife of astronomerPaul Herget.[2]
Lorbach is a member of theEos family (606), the largestasteroid family in theouter main belt consisting of nearly 10,000 asteroids.[3][6]: 23 It orbits the Sun at a distance of 2.9–3.2 AU once every 5 years and 5 months (1,986 days). Its orbit has aneccentricity of 0.05 and aninclination of 11° with respect to theecliptic.[1]Lorbach was first identified asA924 PA atHeidelberg Observatory in 1924. The body'sobservation arc, however, begins 2 days after its official discovery observation at Nice in 1936.[5]
According to the survey carried out by NASA'sWide-field Infrared Survey Explorer with its subsequentNEOWISE mission,Lorbach measures 24.88 kilometers in diameter, and its surface has analbedo of 0.140.[4] It is a stonyS-type asteroid on theTholen taxonomic scheme, and has an absolutemagnitude of 10.77.[1] As of 2017,Lorbach'sspectral type,rotation period and shape remain unknown.
Thisminor planet was named after the maiden name of American Anne Lorbach Herget, second wife of astronomerPaul Herget, after whom the minor planet1751 Herget is named. Anne worked as an assistant at theCincinnati Observatory since the 1960s, key-punching MPC-data and assigning provisional designations to minor planets.[2] The officialnaming citation was published by theMinor Planet Center on 1 August 1978 (M.P.C. 4419).[7]
