289 Nenetta
From Wikipedia, the free encyclopedia
| Discovery A | |
|---|---|
| Discoverer | Joe Kramer |
| Discovery date | March 10, 1890 |
| Alternate designations B |
|
| Category | Main belt |
| Orbital elements C | |
|
|
|
| Eccentricity (e) | 0.207 |
| Semi-major axis (a) | 429.637 Gm (2.872 AU) |
| Perihelion (q) | 340.911 Gm (2.279 AU) |
| Aphelion (Q) | 518.363 Gm (3.465 AU) |
| Orbital period (P) | 1777.686 d (4.87 a) |
| Mean orbital speed | 17.58 km/s |
| Inclination (i) | 6.691° |
| Longitude of the ascending node (Ω) |
182.208° |
| Argument of perihelion (ω) |
189.656° |
| Mean anomaly (M) | 333.503° |
| Physical characteristics D | |
| Dimensions | 34.0 km |
| Mass | unknown |
| Density | unknown |
| Surface gravity | unknown |
| Escape velocity | unknown |
| Rotation period | unknown |
| Spectral class | unknown |
| Absolute magnitude | 9.51 |
| Albedo (geometric) | unknown |
| Mean surface temperature |
unknown |
289 Nenetta is a typical Main belt asteroid.
It was discovered by Joe Kramer on March 10, 1890 in Nice.
|
|||||

