210 Isabella

210 Isabella
Discovery
Discovered by	Johann Palisa
Discovery date	12 November 1879
Designations
MPC designation	(210) Isabella
Pronunciation	/ɪzəˈbɛlə/[1]
Alternative designations	1953 EZ1, 1962 BF
Minor planet category	Main belt (Nemesis)
Orbital characteristics[2]
	Epoch 31 July 2016 (JD 2457600.5)
	Uncertainty parameter 0
Observation arc	131.26 yr (47943 d)
Aphelion	3.0567 AU (457.28 Gm)
Perihelion	2.3892 AU (357.42 Gm)
Semi-major axis	2.7230 AU (407.36 Gm)
Eccentricity	0.12257
Orbital period	4.49 yr (1641.2 d)
Average orbital speed	18.05 km/s
Mean anomaly	153.338°
Mean motion	0° 13m 9.66s / day
Inclination	5.2600°
Longitude of ascending node	32.582°
Argument of perihelion	15.041°
Physical characteristics
Dimensions	86.65±2.3 km[2]; 73.70 ± 8.47 km[3]
Mass	(3.41 ± 1.09) × 1018 kg[3]
Rotation period	6.672 h (0.2780 d)
Geometric albedo	0.0436±0.002
Spectral type	CF
Apparent magnitude	12.2 (peak)
Absolute magnitude (H)	9.33

Isabella (minor planet designation: 210 Isabella) is a large and dark asteroid from the central asteroid belt, approximately 80 kilometers in diameter. It was discovered in Pola by Johann Palisa on 12 November 1879. 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 family of asteroids.[4]

References

"Isabella". Oxford English Dictionary (Online ed.). Oxford University Press. (Subscription or participating institution membership required.)
"210 Isabella". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Retrieved 12 May 2016.
Carry, B. (December 2012), "Density of asteroids", Planetary and Space Science, 73 (1): 98–118, arXiv:1203.4336, Bibcode:2012P&SS...73...98C, doi:10.1016/j.pss.2012.03.009. See Table 1.
De León, J.; Pinilla-Alonso, N.; Campins, H.; Licandro, J.; Marzo, G.A. (2012). "Near-infrared spectroscopic survey of B-type asteroids: Compositional analysis". Icarus. 218 (1): 196–206. Bibcode:2012Icar..218..196D. doi:10.1016/j.icarus.2011.11.024.

External links

The Asteroid Orbital Elements Database
Asteroid Lightcurve Data File
210 Isabella at AstDyS-2, Asteroids—Dynamic Site
- Ephemeris · Observation prediction · Orbital info · Proper elements · Observational info
210 Isabella at the JPL Small-Body Database
- Close approach · Discovery · Ephemeris · Orbit diagram · Orbital elements · Physical parameters

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[1] "Isabella". Oxford English Dictionary (Online ed.). Oxford University Press. (Subscription or participating institution membership required.)

[jpldata-2] "210 Isabella". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Retrieved 12 May 2016.

[Carry2012-3] Carry, B. (December 2012), "Density of asteroids", Planetary and Space Science, 73 (1): 98–118, arXiv:1203.4336, Bibcode:2012P&SS...73...98C, doi:10.1016/j.pss.2012.03.009. See Table 1.

[Campins2012-4] De León, J.; Pinilla-Alonso, N.; Campins, H.; Licandro, J.; Marzo, G.A. (2012). "Near-infrared spectroscopic survey of B-type asteroids: Compositional analysis". Icarus. 218 (1): 196–206. Bibcode:2012Icar..218..196D. doi:10.1016/j.icarus.2011.11.024.