160 Una
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| Discovery | |
|---|---|
| Discovered by: | C. H. F. Peters |
| Discovery date: | February 20, 1876 |
| Alternative names: | |
| Minor planet category: | Main belt |
| Orbital characteristics | |
| Epoch January 30, 2005 (JD 2453400.5) | |
| Aphelion distance: | 435.556 Gm (2.912 AU) |
| Perihelion distance: | 380.561 Gm (2.544 AU) |
| Semi-major axis: | 408.058 Gm (2.728 AU) |
| Eccentricity: | 0.067 |
| Orbital period: | 1645.485 d (4.51 a) |
| Avg. orbital speed: | 18.01 km/s |
| Mean anomaly: | 308.565° |
| Inclination: | 3.824° |
| Longitude of ascending node: | 8.856° |
| Argument of perihelion: | 49.974° |
| Physical characteristics | |
| Dimensions: | 81.2 km |
| Mass: | 5.6×1017 kg |
| Mean density: | 2.0? g/cm³ |
| Equatorial surface gravity: | 0.0227 m/s² |
| Escape velocity: | 0.0429 km/s |
| Rotation period: | 0.234 d (5.61 h) 1 |
| Albedo: | 0.063 3 |
| Temperature: | ~170 K |
| Spectral type: | C 2 |
| Absolute magnitude: | 9.08 |
160 Una is a fairly large and dark, primitive Main belt asteroid.
It was discovered by C. H. F. Peters on February 20, 1876 in Clinton, New York. It is named after a character in Edmund Spenser's epic poem The Faerie Queene (1590).
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| Minor planets | ||
|---|---|---|
| Previous minor planet | 160 Una | Next minor planet |
| List of asteroids | ||
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.
