210 Isabella

210 Isabella

Discovery
Discovered by	Johann Palisa
Discovery date	November 12, 1879
Designations
Alternative names	1953 EZ1, 1962 BF
Minor planet category	Main belt (Nemesis)
Orbital characteristics
Epoch 30 January 2005 (JD 2453400.5)
Aphelion	457.8 Gm (3.06 AU)
Perihelion	356.48 Gm (2.383 AU)
Semi-major axis	407.14 Gm (2.722 AU)
Eccentricity	0.124
Orbital period	1639.903 d (4.49 a)
Average orbital speed	18.05 km/s
Mean anomaly	312.938°
Inclination	5.261°
Longitude of ascending node	32.859°
Argument of perihelion	13.893°
Physical characteristics
Dimensions	73.70 ± 8.47[1] km
Mass	(3.41 ± 1.09) × 10^18 kg[1]
Albedo	0.045
Spectral type	CF
Apparent magnitude	12.2 (peak)
Absolute magnitude (H)	9.33

210 Isabella is a large and dark Main belt asteroid that was discovered by Johann Palisa on November 12, 1879 in Pola. The origin of the name is unknown. The asteroid is probably composed of material similar to carbonaceous chondrites. It is classified as a member of the Nemesis asteroid family.^[2]

References

1. Carry, B. (December 2012), "Density of asteroids", Planetary and Space Science 73, pp. 98–118, arXiv:1203.4336, Bibcode:2012P&SS...73...98C, doi:10.1016/j.pss.2012.03.009. See Table 1.
2. "Near-infrared spectroscopic survey of B-type asteroids: Compositional analysis" (PDF). Icarus 218 (1): 196–206. 2012. Bibcode:2012Icar..218..196D. doi:10.1016/j.icarus.2011.11.024.

External links

• The Asteroid Orbital Elements Database
• Minor Planet Discovery Circumstances
• Asteroid Lightcurve Data File
• Orbital simulation from JPL (Java) / Ephemeris
• 210 Isabella at the JPL Small-Body Database

• Discovery · Orbit diagram · Orbital elements · Physical parameters