2006 Polonskaya
From Infogalactic: the planetary knowledge core
| Discovery [1] | |
|---|---|
| Discovered by | N. Chernykh |
| Discovery site | CrAO (Nauchnyj) |
| Discovery date | 22 September 1973 |
| Designations | |
| MPC designation | 2006 Polonskaya (1973 SB3) |
|
Named after
|
Elene Polonskaya[2] |
| 1973 SB3 · 1941 SD 1948 QH · 1966 VC |
|
| main-belt | |
| Orbital characteristics [1] | |
| Epoch 27 June 2015 (JD 2457200.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 64.17 yr (23,437 days) |
| Aphelion | 2.7735 AU |
| Perihelion | 1.8753 AU |
| 2.3244 AU | |
| Eccentricity | 0.1931 |
| 3.54 yr (1294.4 days) | |
|
Average orbital speed
|
19.35 km/s[citation needed] |
| 271.79° | |
| Inclination | 4.9183° |
| 0.9821° | |
| 24.343° | |
| Known satellites | 1 (probably)[3] |
| Earth MOID | 0.8805 AU |
| Physical characteristics | |
| Dimensions | 4.5±0.2 km[3] |
|
Mean density
|
1.6 g/cm3[3] |
| 3.118 h | |
| 0.10[citation needed] 0.35 (system)[3] |
|
| Temperature | ~ 183 K[citation needed] |
| 12.9 mag | |
| Discovery | |
|---|---|
| Discovered by | D. Pray, P. Pravec, P. Kusnirak, W. Cooney, J. Gross, and D. Terrell |
| Discovery date | 2005/11/01 |
| Light curve | |
| Orbital characteristics | |
| 8.5 km | |
| 0.7979 ± 0.0008 d 19 hours, 9 ± 1 minutes |
|
| 13 mas (maximum) | |
| Satellite of | 2006 Polonskaya |
| Physical characteristics | |
| Dimensions | 0.99 km |
| Volume | 0.5 km3 (assumed) |
|
Sidereal rotation period
|
6.6571 ± 0.0002 h |
| <3.3 fainter than primary | |
| 18.1 | |
2006 Polonskoya is main belt asteroid. It was discovered on 22 September 1973 by Nikolai Chernykh and named after Elene Ivanovna Kazimirchak-Polonskaya, a Russian astronomer. Polonskaya's diameter is approximately 10 kilometers.[1][2]
Satellite
In 2005, it was claimed that lightcurve observations indicate that Polonskaya has a small moon about 0.99 km in diameter.[3] However, the non-synchronously rotating binary still needs to be fully resolved in order to confirm such satellite. Alternatively, a the presence of another body has also been suggested to explain the lightcurve's irregular period, which would make it a trinary asteroid.[4]
References
- ↑ 1.0 1.1 1.2 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 2.0 2.1 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 3.0 3.1 3.2 3.3 3.4 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
External links
- Lua error in package.lua at line 80: module 'strict' not found.
- Johnston's Archive: (2006) Polonskya
- ftp.lowell.edu/pub/elgb/astorb.html
