9936 Al-Biruni

9936 Al-Biruni

Orbit of 9936 Al-Biruni (blue) compared to the inner planets and Jupiter (red)
Discovery [1]
Discovered by E. W. Elst, V. Ivanova
Discovery site Rozhen Observatory
Discovery date 8 August 1986
Designations
MPC designation 9936 Al-Biruni
Named after
 Al-Biruni (astronomer)[2]
1986 PN4 · 1981 UV12
main-belt · (outer) [3]
Orbital characteristics [1]
Epoch 13 January 2016 (JD 2457400.5)
Uncertainty parameter 0
Observation arc 12564 days (34.40 yr)
Aphelion 3.6572 AU (547.11 Gm)
Perihelion 2.5007 AU (374.10 Gm)
3.0790 AU (460.61 Gm)
Eccentricity 0.18779
5.40 yr (1973.3 d)
170.71°
0° 10m 56.748s / day
Inclination 15.460°
310.66°
13.305°
Earth MOID 1.48847 AU (222.672 Gm)
Jupiter MOID 1.66791 AU (249.516 Gm)
Jupiter Tisserand parameter 3.146
Physical characteristics
Dimensions 27.81±1.61 km[4]
24.187±0.314 km[5]
22.16 km (calculated)[3]
10.704 h (0.4460 d)[6]
0.048±0.006[4]
0.0632±0.0151[5]
0.057 (assumed)[3]
C [3]
12.1[1]

    9936 Al-Biruni, provisional designation 1986 PN4, is a carbonaceous asteroid from the outer region of the asteroid belt, about 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.[7]

    The C-type asteroid orbits the Sun at a distance of 2.5–3.7 AU once every 5 years and 5 months (1,971 days). Its orbit is tilted by 15 degrees to the plane of the ecliptic and shows an eccentricity of 0.19.[1] It has a rotation period of 10.7 hours[6] and an albedo between 0.05 and 0.06, according to the space-based surveys carried out by the Japanese Akari satellite and the Wide-field Infrared Survey Explorer.[4][5]

    The minor planet was named after the Persian scholar and polymath Al-Biruni (973–1048). Regarded as the founder of Indology and the father of geodesy, he made important contributions to anthropology, mathematics and astronomy. In particular, he is known for developing a method for the summation of series, for solving algebraic equations, and for the triangulation of distances on Earth's surface.[2] The lunar crater Al-Biruni is also named in his honour.

    References

    1. 1 2 3 4 "JPL Small-Body Database Browser: 9936 Al-Biruni (1986 PN4)" (2015-11-20 last obs.). Jet Propulsion Laboratory. Retrieved 13 April 2016.
    2. 1 2 Schmadel, Lutz D. (2003). Dictionary of Minor Planet Names – (9936) Al-Biruni. Springer Berlin Heidelberg. p. 712. ISBN 978-3-540-29925-7. Retrieved December 2015.
    3. 1 2 3 4 "LCDB Data for (9936) Al-Biruni". Asteroid Lightcurve Database (LCDB). Retrieved December 2015.
    4. 1 2 3 Usui, Fumihiko; Kuroda, Daisuke; Müller, Thomas G.; Hasegawa, Sunao; Ishiguro, Masateru; Ootsubo, Takafumi; et al. (October 2011). "Asteroid Catalog Using Akari: AKARI/IRC Mid-Infrared Asteroid Survey". Publications of the Astronomical Society of Japan 63 (5): 1117–1138. Bibcode:2011PASJ...63.1117U. doi:10.1093/pasj/63.5.1117. Retrieved December 2015.
    5. 1 2 3 Mainzer, A.; Grav, T.; Masiero, J.; Hand, E.; Bauer, J.; Tholen, D.; et al. (November 2011). "NEOWISE Studies of Spectrophotometrically Classified Asteroids: Preliminary Results". The Astrophysical Journal 741 (2): 25. arXiv:1109.6407. Bibcode:2011ApJ...741...90M. doi:10.1088/0004-637X/741/2/90. Retrieved December 2015.
    6. 1 2 Clark, Maurice; Joyce, Brian (December 2002). "Asteroid lightcurve photometry from Goodsell Observatory (741)". The Minor Planet Bulletin 30 (1): 4–7. Bibcode:2003MPBu...30....4C. ISSN 1052-8091. Retrieved December 2015.
    7. ↑ "9936 Al-Biruni (1986 PN4)". Minor Planet Center. Retrieved December 2015.

    External links


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