(230965) 2004 XA192
| Discovery | |
|---|---|
| Discovered by | Palomar |
| Discovery date | 12 December 2004 |
| Designations | |
| SDO (near or extended)[1] | |
| Orbital characteristics[2] | |
| Epoch 13 January 2016 (JD 2457400.5) | |
| Uncertainty parameter 3 | |
| Observation arc | 9268 days (25.37 yr) |
| Earliest precovery date | 29 August 1989 |
| Aphelion | 58.967 AU (8.8213 Tm) |
| Perihelion | 35.465 AU (5.3055 Tm) |
| 47.216 AU (7.0634 Tm) | |
| Eccentricity | 0.24888 |
| 324.44 yr (118503 d) | |
| 356.376° | |
| 0° 0m 10.936s / day | |
| Inclination | 38.07711° |
| 328.7517° | |
| 132.632° | |
| Known satellites | 0 |
| Earth MOID | 34.588 AU (5.1743 Tm) |
| Jupiter MOID | 30.7418 AU (4.59891 Tm) |
| TJupiter | 4.703 |
| Physical characteristics | |
| Dimensions | 549 km[3] 339+120 −95 km[4] |
| 7.88 h (0.328 d) | |
| 7.88[2] | |
| 0.09 (assumed)[3] 0.26+0.34 −0.15[4] | |
| Temperature | 45 K (perihelion)[5]: 11 |
| CO 2-type ("double-dip")[6] | |
| 19.84[7] | |
| 4.2[2] 4.42±0.63[4] 4.6[3] | |
(230965) 2004 XA192 is a Kuiper-belt object with a diameter of 339+120
−95 km. It has an absolute magnitude of approximately 4.42, and albedo around 26%. It was discovered on 12 December 2004 at Palomar Observatory.
It is currently at 35.8 AU from the Sun, near its perihelion.[8]
References
- ↑ Marc Buie (23 August 2014). "Orbit Fit and Astrometric record for 230965". SwRI (Space Science Department). Retrieved 14 November 2014.
- 1 2 3 "JPL Small-Body Database Browser: 230965 (2004 XA192)" (2011-11-22 last obs; arc: 22.23 years). Retrieved 11 April 2016.
- 1 2 3 Brown, Michael E. (2013). "How many dwarf planets are there in the outer solar system?". California Institute of Technology. Retrieved 28 April 2019.
- 1 2 3 Vilenius, E.; Kiss, C.; Müller, T.; Mommert, M.; Santos-Sanz, P.; Pál, A.; Stansberry, J.; Mueller, M.; Peixinho, N.; Lellouch, E.; Fornasier, S.; Delsanti, A.; Thirouin, A.; Ortiz, J. L.; Duffard, R.; Perna, D.; Henry, F. (2014). ""TNOs are Cool": A survey of the trans-Neptunian region". Astronomy & Astrophysics. 564: A35. arXiv:1403.6309. doi:10.1051/0004-6361/201322416.
- ↑ Brunetto, R.; Hénault, E.; Cryan, S.; Pinilla-Alonso, N.; Emery, J. P.; Guilbert-Lepoutre, A.; et al. (March 2025). "Spectral Diversity of DiSCo's TNOs Revealed by JWST: Early Sculpting and Late Irradiation". The Astrophysical Journal Letters. 982 (1): L8. Bibcode:2025ApJ...982L...8B. doi:10.3847/2041-8213/adb977. S2CID 259287422.
- ↑ Pinilla-Alonso, Noemí; Brunetto, Rosario; De Prá, Mário N.; Holler, Bryan J.; Hénault, Elsa; Feliciano, Ana Carolina de Souza; et al. (December 2024). "A JWST/DiSCo-TNOs portrait of the primordial Solar System through its trans-Neptunian objects" (PDF). Nature Astronomy. 9 (2): 230–244. Bibcode:2025NatAs...9..230P. doi:10.1038/s41550-024-02433-2. S2CID 274932942.
- ↑ 0 & n = 230965 AstDys Summary for (230965) 2004 XA192. Retrieved 31 August 2009
- ↑ AstDys Ephmerides for (230965) 2004 XA192, retrieved 31 August 2009
External links