(69987) 1998 WA25
| Discovery | |
|---|---|
| Discovered by | Marc W. Buie |
| Discovery date | November 19, 1998 |
| Designations | |
| MPC designation | (69987) 1998 WA25 |
| none | |
| TNO (cubewano)[1][2] | |
| Orbital characteristics | |
| Epoch 20070410 JD | |
| Aphelion | 6465.176766 Gm (43.217 AU) |
| Perihelion | 6201.884286 Gm (41.457 AU) |
| 6333.530526 Gm (42.337 AU) | |
| Eccentricity | 0.021 |
| 100617 d (275.47 a)[3] | |
Average orbital speed | ? |
| 77.8° | |
| Inclination | 1.0° |
| 136.4° | |
| 204.2° | |
| Physical characteristics | |
| Dimensions | 160 km[4] |
| Mass | ? kg |
Mean density | ? g/cm³ |
| ? m/s² | |
| ? km/h | |
Sidereal rotation period | ? d |
| Albedo | 0.09 (assumed) |
| Temperature | ? K |
Spectral type | ? |
| 7.2 | |
|
| |
(69987) 1998 WA25, also written as (69987) 1998 WA25, is a cubewano. It has a perihelion (closest approach to the Sun) at 41.457 AU and an aphelion (farthest approach from the Sun) at 43.217 AU. It is about 160 km in diameter. It was discovered on November 19, 1998, by Marc W. Buie.
References
- ↑ "MPEC 2009-R09 :Distant Minor Planets (2009 SEPT. 16.0 TT)". IAU Minor Planet Center. 2009-09-04. Retrieved 2009-10-04.
- ↑ Marc W. Buie. "Orbit Fit and Astrometric record for 69987". SwRI (Space Science Department). Retrieved 2009-10-04.
2003-10-22 using 15 observations
- ↑ AstDyS: (69987) 1998WA25
- ↑ List of known trans-Neptunian objects
1. http://cfa-www.harvard.edu/iau/lists/TNOs.html
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