99 Dike
From Infogalactic: the planetary knowledge core
| Discovery[1] | |
|---|---|
| Discovered by | Alphonse Borrelly |
| Discovery date | May 28, 1868 |
| Designations | |
|
Named after
|
Dike |
| A915 BA; 1935 UC; 1935 YL; 1939 UT; 1948 UE; 1948 WC; 1961 XJ; 1974 VB | |
| Main belt | |
| Orbital characteristics[2] | |
| Epoch December 31, 2006 (JD 2454100.5) | |
| Aphelion | 476.928 Gm (3.188 AU) |
| Perihelion | 320.005 Gm (2.139 AU) |
| 398.467 Gm (2.664 AU) | |
| Eccentricity | 0.197 |
| 1587.810 d (4.35 a) | |
|
Average orbital speed
|
18.07 km/s |
| 304.205° | |
| Inclination | 13.858° |
| 41.678° | |
| 196.045° | |
| Physical characteristics | |
| Dimensions | 71.9 km |
| Mass | ~3.9×1017 kg |
|
Mean density
|
2.0? g/cm³ |
|
Equatorial surface gravity
|
~0.0201 m/s² |
|
Equatorial escape velocity
|
~0.0380 km/s |
| 18.127[1][2] h | |
| 0.058 [3] | |
| Temperature | ~172 K |
| C (Tholen) Xk (Bus)[4] |
|
| 9.43 | |
99 Dike (/ˈdaɪkiː/ DY-kee) is a quite large and dark main-belt asteroid. Dike was discovered by Alphonse Borrelly on May 28, 1868. It was his first asteroid discovery. It is named after Dike, the Greek goddess of moral justice.
Based upon a light curve that was generated from photometric observations of this asteroid at Pulkovo Observatory, it has a rotation period of 18.127 ± 0.002 hours and varies in brightness by 0.22 ± 0.02 in magnitude.[1]
The asteroid is located near the Juno clump of asteroids, but is most likely unrelated.
References
- ↑ 1.0 1.1 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ *JPL Small-Body Database Browser
- ↑ Asteroid Data Sets
- ↑ Lua error in package.lua at line 80: module 'strict' not found. See appendix A.
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