7866 Sicoli

7866 Sicoli
Discovery [1]
Discovered by E. Bowell
Discovery site Anderson Mesa Stn.
Discovery date 13 October 1982
Designations
MPC designation 7866 Sicoli
Named after
 Piero Sicoli
(discoverer of minor planets)[2]
1982 TK · 1954 CT
1959 OD
main-belt · Nysa [3]
Orbital characteristics [1]
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 0
Observation arc 62.50 yr (22,827 days)
Aphelion 2.9395 AU
Perihelion 1.9170 AU
2.4283 AU
Eccentricity 0.2106
3.78 yr (1,382 days)
7.8744°
0° 15m 37.8s / day
Inclination 3.4799°
77.980°
253.26°
Physical characteristics
Dimensions 5.604±0.199 km[4][5]
6.34 km (calculated)[3]
0.21 (assumed)[3]
0.2455±0.0504[5]
0.246±0.050[4]
S [3]
13.28±0.28[6]
13.3[1][3]
13.4[5]

    7866 Sicoli, provisional designation 1982 TK, is a stony Nysa asteroid from the inner regions of the asteroid belt, approximately 6 kilometers in diameter. It was discovered on 13 October 1982, by American astronomer Edward Bowell at Lowell's Anderson Mesa Station near Flagstaff, Arizona.[7]

    The S-type asteroid is a member of the stony subgroup of the Nysa family, one of the smaller families in the main-belt, named after its namesake, 44 Nysa. The body orbits the Sun at a distance of 1.9–2.9 AU once every 3 years and 9 months (1,382 days). Its orbit has an eccentricity of 0.21 and an inclination of 3° with respect to the ecliptic.[1] The first precovery was taken at Palomar Mountain in 1954, extending the asteroid's observation arc by 28 years prior to its discovery.[7]

    According to the survey carried out by NASA's Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, the asteroid measures 6.3 kilometers in diameter and its surface has an albedo of 0.246,[4][5] while the Collaborative Asteroid Lightcurve Link assumes a standard albedo for stony asteroids of 0.21 and calculates a diameter of 5.6 kilometers, based on an absolute magnitude of 13.3.[3] As of 2016, no rotational light-curve has been obtained for this asteroid and its rotation period and shape remain unknown.[3]

    The minor planet was named in honor of Italian astronomer Piero Sicoli (b. 1954), a discoverer of minor planets and Observation Coordinator at the Sormano Astronomical Observatory in northern Italy.[2] Naming citation was published on 28 July 1999 (M.P.C. 35488).[8]

    References

    1. 1 2 3 4 "JPL Small-Body Database Browser: 7866 Sicoli (1982 TK)" (2016-08-10 last obs.). Jet Propulsion Laboratory. Retrieved 4 November 2016.
    2. 1 2 Schmadel, Lutz D. (2007). Dictionary of Minor Planet Names – (7866) Sicoli. Springer Berlin Heidelberg. p. 620. ISBN 978-3-540-00238-3. Retrieved 4 November 2016.
    3. 1 2 3 4 5 6 7 "LCDB Data for (7866) Sicoli". Asteroid Lightcurve Database (LCDB). Retrieved 4 November 2016.
    4. 1 2 3 Masiero, Joseph R.; Mainzer, A. K.; Grav, T.; Bauer, J. M.; Cutri, R. M.; Dailey, J.; et al. (November 2011). "Main Belt Asteroids with WISE/NEOWISE. I. Preliminary Albedos and Diameters". The Astrophysical Journal. 741 (2): 20. arXiv:1109.4096Freely accessible. Bibcode:2011ApJ...741...68M. doi:10.1088/0004-637X/741/2/68. Retrieved 4 November 2016.
    5. 1 2 3 4 Mainzer, A.; Grav, T.; Masiero, J.; Hand, E.; Bauer, J.; Tholen, D.; et al. (November 2011). "NEOWISE Studies of Spectrophotometrically Classified Asteroids: Preliminary Results" (PDF). The Astrophysical Journal. 741 (2): 25. arXiv:1109.6407Freely accessible. Bibcode:2011ApJ...741...90M. doi:10.1088/0004-637X/741/2/90. Retrieved 4 November 2016.
    6. ↑ Veres, Peter; Jedicke, Robert; Fitzsimmons, Alan; Denneau, Larry; Granvik, Mikael; Bolin, Bryce; et al. (November 2015). "Absolute magnitudes and slope parameters for 250,000 asteroids observed by Pan-STARRS PS1 - Preliminary results". Icarus. 261: 34–47. arXiv:1506.00762Freely accessible. Bibcode:2015Icar..261...34V. doi:10.1016/j.icarus.2015.08.007. Retrieved 4 November 2016.
    7. 1 2 "7866 Sicoli (1982 TK)". Minor Planet Center. Retrieved 4 November 2016.
    8. ↑ "MPC/MPO/MPS Archive". Minor Planet Center. Retrieved 4 November 2016.

    External links

    This article is issued from Wikipedia - version of the 11/4/2016. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.