| Minorplanet: | yes |
| Background: |
|
| 501 Urhixidur | |
| Discovered: | 18 January 1903 |
| Mpc Name: | (501) Urhixidur |
| Alt Names: | 1903 LB; 1943 FC; 1949 FW; ; 1951 SE; 1955 FB |
| Orbit Ref: | [1] |
| Epoch: | 31 July 2016 (JD 2457600.5) |
| Semimajor: | 3.1692AU |
| Perihelion: | 2.727AU |
| Aphelion: | 3.6114abbr=onNaNabbr=on |
| Eccentricity: | 0.13953 |
| Period: | 5.64 yr (2060.7 d) |
| Inclination: | 20.854° |
| Asc Node: | 357.30° |
| Arg Peri: | 355.03° |
| Mass: | 4.9×1017 kg |
| Density: | 2.0 g/cm3 |
| Rotation: | 13.1743abbr=onNaNabbr=on |
| Abs Magnitude: | 9.3 |
| Magnitude: | 12.6–15.9 |
| Mean Motion: | / day |
| Observation Arc: | 113.22 yr (41352 d) |
| Uncertainty: | 0 |
501 Urhixidur is a relatively large (ranked 372nd by IRAS) main belt asteroid. It was discovered on 18 January 1903, by astronomer Max Wolf (1863–1932), at the Heidelberg Observatory in southwest Germany. Like 500 Selinur and 502 Sigune, it is named after a character in Friedrich Theodor Vischer's then-bestseller satirical novel Auch Einer.[2]
Its rotational period was reported as 15 hours in 1992, but corrected to 13.174 hours in 2013.[3]