21711 Wilfredwong
From Wikipedia, the free encyclopedia
| Discovery A | |
|---|---|
| Discoverer | LINEAR |
| Discovery date | September 7, 1999 |
| Alternate designations B |
1999 RE95 |
| Category | Main belt |
| Orbital elements C | |
|
|
|
| Eccentricity (e) | 0.1719550 |
| Semi-major axis (a) | 2.47 AU |
| Perihelion (q) | 2.0452755 AU |
| Aphelion (Q) | 2.8947351 AU) |
| Orbital period (P) | 1417.8989259 d (3.88 a) |
| Mean orbital speed | ? km/s |
| Inclination (i) | 2.819° |
| Longitude of the ascending node (Ω) |
192.73956° |
| Argument of perihelion (ω) |
7.22994° |
| Mean anomaly (M) | 241.16546° |
| Physical characteristics D | |
| Dimensions | 3-7km diameter |
| Mass | ?×10? kg |
| Density | ? g/cm³ |
| Surface gravity | ? m/s² |
| Escape velocity | ? km/s |
| Rotation period | ? d |
| Spectral class | ? |
| Absolute magnitude | 14.7 |
| Albedo (geometric) | ? |
| Mean surface temperature |
? K |
 Wilfredwong Orbit Diagram |
21711 Wilfredwong is an asteroid discovered on September 7, 1999 by MIT Lincoln Laboratory's Near-Earth Asteroid Research (LINEAR) program. It lies in the Ceres belt of the solar system.
It was named in honor of Wilfred Wong (b. 1988), who was awarded second place in the 2006 Intel International Science and Engineering Fair for his engineering project, Polycaprolactone-Chitosan Nanocomposite Biomaterials for Tissue Engineering and Wound Healing.
Wilfred is currently attending the Cooper Union.[citation needed]
[edit] References
- Jet Propulsion Laboratory page on 21711 Wilfredwong
- Jet Propulsion Laboratory orbit diagram of 21711 Wilfred Wong
|
|||||
