Astronomy:501 Urhixidur
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Short description: Main-belt asteroid
| Discovery | |
|---|---|
| Discovered by | Max Wolf |
| Discovery site | Heidelberg Observatory |
| Discovery date | 18 January 1903 |
| Designations | |
| (501) Urhixidur | |
| 1903 LB; 1943 FC; 1949 FW; 1951 RB2; 1951 SE; 1955 FB | |
| Minor planet category | Main belt |
| Orbital characteristics[1] | |
| Epoch 31 July 2016 (JD 2457600.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 113.22 yr (41352 d) |
| |{{{apsis}}}|helion}} | 3.6114 astronomical unit|AU (540.26 Gm) |
| |{{{apsis}}}|helion}} | 2.7270 AU (407.95 Gm) |
| 3.1692 AU (474.11 Gm) | |
| Eccentricity | 0.13953 |
| Orbital period | 5.64 yr (2060.7 d) |
| Mean anomaly | 201.00° |
| Mean motion | 0° 10m 28.92s / day |
| Inclination | 20.854° |
| Longitude of ascending node | 357.30° |
| 355.03° | |
| Physical characteristics | |
| Dimensions | 77.44±2.3 km |
| Mass | 4.9×1017 kg |
| Mean density | 2.0 g/cm3 |
| Rotation period | 13.1743 h (0.54893 d) |
| Geometric albedo | 0.0812±0.005 |
| Apparent magnitude | 12.6–15.9 |
| Absolute magnitude (H) | 9.3 |
Urhixidur (minor planet designation: 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]
References
- ↑ "501 Urhixidur". JPL Small-Body Database. Jet Propulsion Laboratory. http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=501.
- ↑ Schmadel, Lutz D. (2013). Dictionary of Minor Planet Names. Springer Science & Business Media. p. 84. ISBN 978-3-662-02804-9. https://books.google.com/books?id=2lzoCAAAQBAJ&pg=PA84.
- ↑ Hills, Kevin (2013). "Asteroid Lightcurve Analysis at Riverland Dingo Observatory (RDO): 501 Urhixidur, 1897 Hind, 1928 Summa, 6261 Chione, and (68216) 2001 CV 26". The Minor Planet Bulletin 40 (1): 12–13. ISSN 1052-8091. Bibcode: 2013MPBu...40...12H. http://adsabs.harvard.edu/full/2013MPBu...40...12H.
External links
- 501 Urhixidur at AstDyS-2, Asteroids—Dynamic Site
- 501 Urhixidur at the JPL Small-Body Database
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