21064 Yangliwei
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| Discovery A | |
|---|---|
| Discoverer | Eric Walter Elst |
| Discovery date | June 6, 1991 |
| Alternate designations B |
1991 LY1, 1999 VT38 |
| Category | Main belt |
| Orbital elements C | |
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|
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| Eccentricity (e) | 0.123 |
| Semi-major axis (a) | 476.390 Gm (3.184 AU) |
| Perihelion (q) | 417.926 Gm (2.794 AU) |
| Aphelion (Q) | 534.854 Gm (3.575 AU) |
| Orbital period (P) | 2075.650 d (5.68 a) |
| Mean orbital speed | 16.63 km/s |
| Inclination (i) | 2.607° |
| Longitude of the ascending node (Ω) |
81.551° |
| Argument of perihelion (ω) |
160.312° |
| Mean anomaly (M) | 200.741° |
| Physical characteristics D | |
| Dimensions | ? km |
| Mass | ?×10? kg |
| Density | ? g/cm³ |
| Surface gravity | ? m/s² |
| Escape velocity | ? km/s |
| Rotation period | ? d |
| Spectral class | ? |
| Absolute magnitude | 14.1 |
| Albedo (geometric) | 0.1? |
| Mean surface temperature |
~156 K |
21062 Yangliwei is an asteroid named after Chinese astronaut Yang Liwei. It was discovered in 1991 and named in 2005.
[edit] References
- AstDys object list
- "Asteroids Named After First Manned Spacecraft, Spaceman", Xinhua News Agency, March 17, 2005.
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