![]() Orbit of Al-Biruni (blue) compared to the inner planets and Jupiter (outermost) | |
Discovery [1] | |
---|---|
Discovered by | E. W. Elst V. Ivanova |
Discovery site | Rozhen Obs. |
Discovery date | 8 August 1986 |
Designations | |
(9936) Al-Biruni | |
Pronunciation | /ælbɪˈruːni/[2] |
Named after | البيروني al-Bīrūnī (Persian astronomer)[3] |
1986 PN4 · 1981 UV12 | |
main-belt · (outer)[4] | |
Orbital characteristics [1] | |
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 |
3.0820 AU | |
Eccentricity | 0.1854 |
5.41 yr (1,976 days) | |
279.59° | |
0° 10m 55.92s / day | |
Inclination | 15.404° |
310.41° | |
13.774° | |
Physical characteristics | |
Dimensions | 22.16 km (calculated)[4] 23.890±0.170[5] 24.187±0.314 km[6] 27.81±1.61 km[7] |
10.704±0.010 h[8] | |
0.048±0.006[7] 0.057 (assumed)[4] 0.0632±0.0151[6] 0.065±0.012[5] | |
C [4] | |
12.1[1] · 11.7[6][7] · 12.0[4] | |
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.[9] It was named for Persian medieval scholar Al-Biruni.[3]
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