7866 Sicoli

7866 Sicoli
Discovery
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)
Alternative designations	1982 TK · 1954 CT; 1959 OD
Minor planet category	main-belt · Nysa
Orbital characteristics
	Epoch 4 September 2017 (JD 2458000.5)
	Uncertainty parameter 0
Observation arc	63.01 yr (23,016 days)
\|{{{apsis}}}\|helion}}	2.9392 AU
\|{{{apsis}}}\|helion}}	1.9165 AU
Semi-major axis	2.4279 AU
Eccentricity	0.2106
Orbital period	3.78 yr (1,382 days)
Mean anomaly	112.12°
Mean motion	0° 15m 37.8s / day
Inclination	3.4801°
Longitude of ascending node	77.978°
\|{{{apsis}}}\|helion}}	253.20°
Physical characteristics
Dimensions	5.604±0.199 km; 6.34 km (calculated)
Geometric albedo	0.21 (assumed); 0.2455±0.0504; 0.246±0.050
Spectral type	S
Absolute magnitude (H)	13.28±0.28 · 13.3 · 13.4

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 asteroid was named after Italian astronomer Piero Sicoli.^[2]

Orbit and classification

Sicoli 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 in the inner main-belt 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]

Physical characteristics

Diameter and albedo

According to the survey carried out by NASA's Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, Sicoli 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]

Lightcurves

As of 2016, no rotational lightcurve has been obtained for this asteroid and its rotation period and shape remain unknown.^[1]^[3]

Naming

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

References

↑ ^1.0 ^1.1 ^1.2 ^1.3 ^1.4 "JPL Small-Body Database Browser: 7866 Sicoli (1982 TK)". Jet Propulsion Laboratory. https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2007866.
↑ ^2.0 ^2.1 ^2.2 Schmadel, Lutz D. (2007). "(7866) Sicoli". Dictionary of Minor Planet Names – (7866) Sicoli. Springer Berlin Heidelberg. p. 620. doi:10.1007/978-3-540-29925-7_6718. ISBN 978-3-540-00238-3.
↑ ^3.0 ^3.1 ^3.2 ^3.3 ^3.4 ^3.5 ^3.6 "LCDB Data for (7866) Sicoli". Asteroid Lightcurve Database (LCDB). http://www.minorplanet.info/PHP/generateOneAsteroidInfo.php?AstInfo=7866%7CSicoli.
↑ ^4.0 ^4.1 ^4.2 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. doi:10.1088/0004-637X/741/2/68. Bibcode: 2011ApJ...741...68M. http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2011ApJ...741...68M. Retrieved 4 November 2016.
↑ ^5.0 ^5.1 ^5.2 ^5.3 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. doi:10.1088/0004-637X/741/2/90. Bibcode: 2011ApJ...741...90M.
↑ 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. doi:10.1016/j.icarus.2015.08.007. Bibcode: 2015Icar..261...34V. http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2015Icar..261...34V. Retrieved 4 November 2016.
↑ ^7.0 ^7.1 "7866 Sicoli (1982 TK)". Minor Planet Center. https://www.minorplanetcenter.net/db_search/show_object?object_id=7866.
↑ "MPC/MPO/MPS Archive". Minor Planet Center. https://www.minorplanetcenter.net/iau/ECS/MPCArchive/MPCArchive_TBL.html.

External links

Asteroid Lightcurve Database (LCDB), query form (info )
Dictionary of Minor Planet Names, Google books
Asteroids and comets rotation curves, CdR – Observatoire de Genève, Raoul Behrend
Discovery Circumstances: Numbered Minor Planets (5001)-(10000) – Minor Planet Center
7866 Sicoli at AstDyS-2, Asteroids—Dynamic Site
- Ephemeris · Observation prediction · Orbital info · Proper elements · Observational info
7866 Sicoli at the JPL Small-Body Database
- Close approach · Discovery · Ephemeris · Orbit diagram · Orbital elements · Physical parameters

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Original source: https://en.wikipedia.org/wiki/7866 Sicoli. Read more

[jpldata-1] 1.0 ^1.1 ^1.2 ^1.3 ^1.4 "JPL Small-Body Database Browser: 7866 Sicoli (1982 TK)". Jet Propulsion Laboratory. https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2007866.

[springer-2] 2.0 ^2.1 ^2.2 Schmadel, Lutz D. (2007). "(7866) Sicoli". Dictionary of Minor Planet Names – (7866) Sicoli. Springer Berlin Heidelberg. p. 620. doi:10.1007/978-3-540-29925-7_6718. ISBN 978-3-540-00238-3.

[lcdb-3] 3.0 ^3.1 ^3.2 ^3.3 ^3.4 ^3.5 ^3.6 "LCDB Data for (7866) Sicoli". Asteroid Lightcurve Database (LCDB). http://www.minorplanet.info/PHP/generateOneAsteroidInfo.php?AstInfo=7866%7CSicoli.

[Masiero-2011-4] 4.0 ^4.1 ^4.2 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. doi:10.1088/0004-637X/741/2/68. Bibcode: 2011ApJ...741...68M. http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2011ApJ...741...68M. Retrieved 4 November 2016.

[WISE-5] 5.0 ^5.1 ^5.2 ^5.3 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. doi:10.1088/0004-637X/741/2/90. Bibcode: 2011ApJ...741...90M.

[Veres-2015-6] 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. doi:10.1016/j.icarus.2015.08.007. Bibcode: 2015Icar..261...34V. http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2015Icar..261...34V. Retrieved 4 November 2016.

[MPC-Sicoli-7] 7.0 ^7.1 "7866 Sicoli (1982 TK)". Minor Planet Center. https://www.minorplanetcenter.net/db_search/show_object?object_id=7866.

[MPC-Circulars-Archive-8] "MPC/MPO/MPS Archive". Minor Planet Center. https://www.minorplanetcenter.net/iau/ECS/MPCArchive/MPCArchive_TBL.html.

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