astro.wikisort.org - Asteroid

10140 Villon, provisional designation 1993 SX₄, is a Nysian asteroid from the inner regions of the asteroid belt, approximately 5 kilometers (3 miles) in diameter. It was discovered on 19 September 1993, by Belgian astronomer Eric Elst at the CERGA Observatory at Caussols in France.[1] It was named after 15th-century French poet François Villon.[1]

10140 Villon

Discovery[1]
Discovered by	E. W. Elst
Discovery site	CERGA Obs.
Discovery date	19 September 1993
Designations
MPC designation	(10140) Villon
Named after	François Villon[1] (French poet)
Alternative designations	1993 SX4 · 1973 GZ 1977 KH · 1984 CJ 1990 WQ15
Minor planet category	main-belt[1][2] · (inner) Nysa[3]
Orbital characteristics[2]
Epoch 23 March 2018 (JD 2458200.5)
Uncertainty parameter 0
Observation arc	44.91 yr (16,402 d)
Aphelion	2.7383 AU
Perihelion	2.1022 AU
Semi-major axis	2.4203 AU
Eccentricity	0.1314
Orbital period (sidereal)	3.77 yr (1,375 d)
Mean anomaly	340.65°
Mean motion	0° 15m 42.48s / day
Inclination	2.6208°
Longitude of ascending node	165.49°
Argument of perihelion	21.421°
Physical characteristics
Mean diameter	4.785±0.134 km[4]
Geometric albedo	0.280±0.078[4]
Absolute magnitude (H)	13.7[2]

Orbit and classification

Villon is member of the Nysa family (405),[3] one of the largest asteroid families.[5] It orbits the Sun in the inner main-belt at a distance of 2.1–2.7 AU once every 3 years and 9 months (1,375 days; semi-major axis of 2.42 AU). Its orbit has an eccentricity of 0.13 and an inclination of 3° with respect to the ecliptic.[2] The body's observation arc begins with its first observations as 1973 GZ at the Crimean Astrophysical Observatory in April 1973, more than 20 years prior to its official discovery observation at Caussols.[1]

Physical characteristics

Villon's spectral type has not been determined, Based on its family classification and measured albedo (see below), it is likely a stony S-type asteroid.[5] It has an absolute magnitude of 13.7.[2] As of 2018, no rotational lightcurve of Villon has been obtained from photometric observations. The body's rotation period, pole and shape remain unknown.[2]

Diameter and albedo

According to the survey carried out by the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, Villon measures 4.785 kilometers in diameter and its surface has an albedo of 0.280.[4]

Naming

This minor planet was named after medieval French poet François Villon (1431–1463).[1] The official naming citation was published by the Minor Planet Center on 28 July 1999 (M.P.C. 35493).[6]

References

External links

• Asteroid Lightcurve Database (LCDB), query form (info Archived 16 December 2017 at the Wayback Machine)
• Dictionary of Minor Planet Names, Google books
• Discovery Circumstances: Numbered Minor Planets (10001)-(15000) – Minor Planet Center
• 10140 Villon at AstDyS-2, Asteroids—Dynamic Site
  • Ephemeris · Observation prediction · Orbital info · Proper elements · Observational info
• 10140 Villon at the JPL Small-Body Database
  • Close approach · Discovery · Ephemeris · Orbit diagram · Orbital elements · Physical parameters

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