|
Discovery[1]
|
|
|---|---|
| Discovered by | M. W. Buie, A. B. Jordan, J. L. Elliot |
| Discovery date | April 8, 2002 |
|
Designations
|
|
| MPC designation | (95625) 2002 GX32 |
| Alternate name(s) | none |
| Minor planet category |
SDO[2] 3:7 resonance[3][4][5] |
| Epoch November 30, 2008 (JD 2454800.5) | |
| Aphelion | 11030 Gm 73.731 AU (Q) |
| Perihelion | 4998 Gm 33.140 AU (q) |
| Semi-major axis | 7993 Gm 53.436 AU (a) |
| Eccentricity | 0.37980 |
| Orbital period | 390.63 yr |
| Average orbital speed | 3.91 km/s |
| Mean anomaly | 10.754° |
| Inclination | 13.940° |
| Longitude of ascending node | 28.183° |
| Argument of perihelion | 186.36° |
|
Physical characteristics
|
|
| Dimensions | 153 km (assumed)[6] |
| Mass | 3.8×1018? kg |
| Mean density | 2.0? g/cm³ |
| Equatorial surface gravity | 0.0428? m/s² |
| Escape velocity | 0.0809? km/s |
| Sidereal rotation period |
? d |
| Albedo | 0.09 (assumed) |
| Temperature | ~38 K |
| Spectral type | ? |
| Absolute magnitude (H) | 7.1[1] |
(95625) 2002 GX32, also written as (95625) 2002 GX32, is a trans-Neptunian object that resides in the Kuiper belt.[2] It has a 3:7 resonance with Neptune.[3] It was discovered on April 8, 2002 by Marc W. Buie, Amy B. Jordan, and James L. Elliot.
It came to perihelion in 1997.[1]
Assuming a generic TNO albedo of 0.09, it is about 153 km in diameter.[6]
Simulations by Emel’yanenko and Kiseleva in 2007 show that (95625) 2002 GX32 has a 99% probability of librating in a 3:7 resonance with Neptune.[7]
The Neptune 3:7 mean-motion resonance keeps it more than 11 AU from Neptune over a 14000-year period.[4]
It has been observed 21 times over 4 oppositions and has an orbit quality code of 3.[1]
|
|||||
|
||||||||||||||||||||||
|
||||||||