431 Nephele
From Wikipedia, the free encyclopedia
| Discovery A | |
|---|---|
| Discoverer | Auguste Charlois |
| Discovery date | December 18, 1897 |
| Alternate designations B |
1897 DN |
| Category | Main belt (Themis) |
| Orbital elements C | |
|
|
|
| Eccentricity (e) | 0.175 |
| Semi-major axis (a) | 469.489 Gm (3.138 AU) |
| Perihelion (q) | 387.107 Gm (2.588 AU) |
| Aphelion (Q) | 551.872 Gm (3.689 AU) |
| Orbital period (P) | 2030.677 d (5.56 a) |
| Mean orbital speed | 16.81 km/s |
| Inclination (i) | 1.827° |
| Longitude of the ascending node (Ω) |
117.417° |
| Argument of perihelion (ω) |
212.678° |
| Mean anomaly (M) | 210.253° |
| Physical characteristics D | |
| Dimensions | 95.0 km |
| Mass | unknown |
| Density | unknown |
| Surface gravity | unknown |
| Escape velocity | unknown |
| Rotation period | unknown |
| Spectral class | C |
| Absolute magnitude | 8.72 |
| Albedo (geometric) | unknown |
| Mean surface temperature |
unknown |
431 Nephele is a large Main belt asteroid. It is classified as a C-type asteroid and is probably composed of carbonaceous material.
It was discovered by Auguste Charlois on December 18, 1897 in Nice.
 |
This article about a C-type asteroid native to the Main Belt is a stub. You can help Wikipedia by expanding it. |
|
|||||
