220 Stephania
From Wikipedia, the free encyclopedia
| Discovery A | |
|---|---|
| Discoverer | Johann Palisa |
| Discovery date | May 19, 1881 |
| Alternate designations B |
1925 VE, 1931 FP, 1932 UA, 1943 WB, 1946 MA, 1950 TT4, 1961 WB |
| Category | Main belt |
| Orbital elements C | |
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| Eccentricity (e) | 0.258 |
| Semi-major axis (a) | 351.277 Gm (2.348 AU) |
| Perihelion (q) | 260.473 Gm (1.741 AU) |
| Aphelion (Q) | 442.081 Gm (2.955 AU) |
| Orbital period (P) | 1314.246 d (3.6 a) |
| Mean orbital speed | 19.44 km/s |
| Inclination (i) | 7.585° |
| Longitude of the ascending node (Ω) |
258.057° |
| Argument of perihelion (ω) |
78.595° |
| Mean anomaly (M) | 59.033° |
| Physical characteristics D | |
| Dimensions | 31.0 km |
| Mass | unknown |
| Density | unknown |
| Surface gravity | unknown |
| Escape velocity | unknown |
| Rotation period | 18.198 h |
| Spectral class | P |
| Absolute magnitude | 11.0 |
| Albedo (geometric) | 0.073 |
| Mean surface temperature |
unknown |
220 Stephania is a Main belt asteroid. It is a P-type asteroid, meaning it is relatively dark and composed of organic rich silicates, carbon and anhydrous silicates.
It was discovered by Johann Palisa on May 19, 1881 in Vienna.
The name honours Princess Stéphanie of Belgium.
[edit] References
- The Asteroid Orbital Elements Database
- Minor Planet Discovery Circumstances
- Asteroid Lightcurve Data File
| Minor planets | ||
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| Previous minor planet | 220 Stephania | Next minor planet |
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| Vulcanoids | Near-Earth asteroids | Main belt | Jupiter Trojans | Centaurs | Damocloids | Comets | Trans-Neptunians (Kuiper belt · Scattered disc · Oort cloud) |
| For other objects and regions, see: asteroid groups and families, binary asteroids, asteroid moons and the Solar system For a complete listing, see: List of asteroids. See also Pronunciation of asteroid names and Meanings of asteroid names. |
