9936 Al-Biruni
9936 Al-Biruni, provisional designation 1986 PN4, is a carbonaceous asteroid from the outer region of the asteroid belt, approximately 24 kilometers in diameter. It was discovered on 8 August 1986, by Belgian and Bulgarian astronomers Eric Elst and Violeta Ivanova at the Rozhen Observatory, located in Bulgaria's Smolyan province near the border to Greece. It was named for Persian medieval scholar Al-Biruni.
Orbit of Al-Biruni (blue) compared to the inner planets and Jupiter (outermost) | |
| Discovery | |
|---|---|
| Discovered by | E. W. Elst V. Ivanova |
| Discovery site | Rozhen Obs. |
| Discovery date | 8 August 1986 |
| Designations | |
MPC designation | (9936) Al-Biruni |
| Pronunciation | /ælbɪˈruːni/ |
Named after | البيروني al-Bīrūnī (Persian astronomer) |
Alternative designations | 1986 PN4 · 1981 UV12 |
Minor planet category | main-belt · (outer) |
| Orbital characteristics | |
| Epoch 4 September 2017 (JD 2458000.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 35.62 yr (13,009 days) |
| Aphelion | 3.6534 AU |
| Perihelion | 2.5107 AU |
Semi-major axis | 3.0820 AU |
| Eccentricity | 0.1854 |
Orbital period (sidereal) | 5.41 yr (1,976 days) |
Mean anomaly | 279.59° |
Mean motion | 0° 10m 55.92s / day |
| Inclination | 15.404° |
Longitude of ascending node | 310.41° |
| 13.774° | |
| Physical characteristics | |
| Dimensions | 22.16 km (calculated) 23.890±0.170 24.187±0.314 km 27.81±1.61 km |
Synodic rotation period | 10.704±0.010 h |
| 0.048±0.006 0.057 (assumed) 0.0632±0.0151 0.065±0.012 | |
| C | |
| 12.1 · 11.7 · 12.0 | |
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.