354 Eleonora
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| Discovery A | |
|---|---|
| Discoverer | Auguste Charlois |
| Discovery date | January 17, 1893 |
| Alternate designations B |
1893 A |
| Category | Main belt |
| Orbital elements C | |
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| Eccentricity (e) | 0.113 |
| Semi-major axis (a) | 418.701 Gm (2.799 AU) |
| Perihelion (q) | 371.553 Gm (2.484 AU) |
| Aphelion (Q) | 465.848 Gm (3.114 AU) |
| Orbital period (P) | 1710.242 d (4.68 a) |
| Mean orbital speed | 17.8 km/s |
| Inclination (i) | 18.385° |
| Longitude of the ascending node (Ω) |
140.51° |
| Argument of perihelion (ω) |
6.994° |
| Mean anomaly (M) | 317.966° |
| Physical characteristics D | |
| Dimensions | 155.0 km |
| Mass | unknown |
| Density | unknown |
| Surface gravity | unknown |
| Escape velocity | unknown |
| Rotation period | unknown |
| Spectral class | S |
| Absolute magnitude | 6.44 |
| Albedo (geometric) | unknown |
| Mean surface temperature |
unknown |
354 Eleonora is a very large Main belt asteroid. It is classified as an S-type asteroid.
It was discovered by Auguste Charlois on January 17, 1893 in Nice.
During favorable oppositions, such as in 1968 and 2010, Eleonora can reach an apparent magnitude of +9.31.
[edit] External links
- Orbital simulation from JPL (Java) / Ephemeris
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This article about an S-type asteroid native to the Main Belt is a stub. You can help Wikipedia by expanding it. |
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