513 Centesima

513 Centesima

Discovery[1]
Discovered by	Max Wolf
Discovery site	Heidelberg
Discovery date	August 24, 1903
Designations
Alternative names	1903 LY
Orbital characteristics
Epoch 2013-Apr-18 (JD 2456400.5)
Aphelion	3.2566 AU
Perihelion	2.7732 AU
Semi-major axis	3.0149 AU
Eccentricity	0.08017
Orbital period	5.24 a
Mean anomaly	282.23°
Inclination	9.7149°
Longitude of ascending node	184.52°
Argument of perihelion	225.21°
Physical characteristics
Dimensions	50km (IRAS)[1]
Escape velocity	~25 m/s (56 mph)
Rotation period	5.23 hr[1]
Albedo	0.0885[1]
Spectral type	K[1]
Absolute magnitude (H)	9.7[1]

513 Centesima is a 50 km Main-belt asteroid orbiting the Sun.^[1] It is one of the core members of the Eos family of asteroids. Relatively little is known about this tiny asteroid. It is not known to possess any natural satellites, so its mass is unknown, and therefore can only be estimated. However, it has a rather rapid rotation period of just over 5 hours. This fact can be utilized to determine that the asteroid must be excepionally dense in order for it to not fall apart. This enables a density estimate. It was discovered August 24, 1903 by late 19th and early 20th century astronomer Max Wolf.^[1] It was his 100th asteroid discovery, hence the name, which in Latin, means "hundredth".

References

1. "JPL Small-Body Database Browser: 513 Centesima (1903 LY)" (2012-09-28 last obs). Jet Propulsion Laboratory. Retrieved 2013-03-10.

External links

• 513 Centesima at the JPL Small-Body Database

• Discovery · Orbit diagram · Orbital elements · Physical parameters