210 Isabella
From Wikipedia, the free encyclopedia
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Discovery
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| Discovered by | Johann Palisa |
| Discovery date | November 12, 1879 |
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Designations
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| Alternative names | 1953 EZ1, 1962 BF |
| Minor planet category |
Main belt (Nemesis) |
| 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° |
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Physical characteristics
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| Dimensions | 87.0 km |
| Mass | unknown |
| Mean density | unknown |
| Equatorial surface gravity | unknown |
| Escape velocity | unknown |
| Rotation period | unknown |
| Albedo | 0.045 |
| Temperature | unknown |
| Spectral type | CF |
| Apparent magnitude | 12.2 (peak) |
| Absolute magnitude | 9.33 |
210 Isabella is a large and dark Main belt asteroid and is probably composed of material similar to carbonaceous chondrites.
The asteroid is classified as a member of the Nemesis asteroid family.
It was discovered by Johann Palisa on November 12, 1879 in Pola.
The origin of the name is unknown.
[edit] References
- The Asteroid Orbital Elements Database
- Minor Planet Discovery Circumstances
- Asteroid Lightcurve Data File
[edit] External links
- Orbital simulation from JPL (Java) / Ephemeris
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