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Discovery and designation
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| Discovered by | E. W. Elst & V. Ivanova | |||||||||
| Discovery date | August 8, 1986 | |||||||||
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Designations
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| MPC designation | 9936 Al-Biruni | |||||||||
| Named after | Abu Rayhan Biruni | |||||||||
| Alternate name(s) | 1986 PN4, 1981 UV12 | |||||||||
| Epoch October 27, 2007 | ||||||||||
| Ap | 3.6617255 AU | |||||||||
| Peri | 2.4865879 AU | |||||||||
| Semi-major axis | 3.0741567 AU | |||||||||
| Eccentricity | 0.1911317 | |||||||||
| Orbital period | 1968.7358189 d | |||||||||
| Mean anomaly | 342.96505° | |||||||||
| Inclination | 15.47567° | |||||||||
| Longitude of ascending node | 310.68967° | |||||||||
| Argument of peri | 12.73603° | |||||||||
| Dimensions | ~20 km[1] | |||||||||
| Sidereal rotation period |
10.704 h | |||||||||
| Surface temp. Kelvin Celsius |
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| Absolute magnitude (H) | 11.7 | |||||||||
9936 Al-Biruni is a main belt asteroid. It orbits the Sun once every 5.39 years.[2]
Discovered on August 8, 1986 by Eric Elst and Violeta Ivanova at the Bulgarian National Astronomical Observatory in Smolyan, it was given the provisional designation "1986 PN4". It was later renamed "Al-Biruni" after Al-Biruni, an eleventh century Persian scientist who made important contributions to anthropology, mathematics and astronomy.[3]
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