19521 Chaos
| Discovery | |
|---|---|
| Discovered by | Deep Ecliptic Survey |
| Discovery date | 19 November 1998 |
| Designations | |
| MPC designation | 19521 Chaos |
| Pronunciation | /ˈkeɪ.ɒs/ |
|
Named after
|
Chaos |
| 1998 WH24 | |
| TNO (cubewano)[1] | |
| Adjectives | Chaotian |
| Orbital characteristics[2] | |
| Epoch 13 January 2016 (JD 2457400.5) | |
| Uncertainty parameter 3 | |
| Observation arc | 5902 days (16.16 yr) |
| Aphelion | 50.636 AU (7.5750 Tm) |
| Perihelion | 40.957 AU (6.1271 Tm) |
| 45.796 AU (6.8510 Tm) | |
| Eccentricity | 0.10567 |
| 309.92 yr (113199 d) | |
|
Average orbital speed
|
4.3931 km/s |
| 337.2998° | |
| Inclination | 12.0502° |
| 50.0239° | |
| 58.4097° | |
| Earth MOID | 39.9896 AU (5.98236 Tm) |
| Jupiter MOID | 35.8316 AU (5.36033 Tm) |
| Physical characteristics | |
| Dimensions | 600+140 −130 km [3] |
|
Sidereal rotation period
|
3.985 d |
| 0.050+0.030 −0.016 [3] |
|
| 4.8[2] 5.0 [4] |
|
19521 Chaos /ˈkeɪ.ɒs/ is a cubewano, a Kuiper-belt object not in resonance with any planet. It is a likely dwarf planet. Chaos was discovered in 1998 by the Deep Ecliptic Survey with Kitt Peak's 4 m telescope. Its albedo is 0.050+0.030
−0.016,[3] making it, with its absolute magnitude (H) of 4.8,[2] 600+140
−130 km in diameter.[3] It is named after the primeval state of existence in Greek mythology, from which the first gods appeared.
Orbit and rotation
19521 Chaos has an orbital period of approximately 309 years. Its orbit is not much more eccentric than the orbit of Pluto. 19521 Chaos's orbit is inclined approximately 12° to the ecliptic. Its orbit never crosses the orbit of Neptune.
In fiction
In the online comic Quantum Vibe the lead characters hide on a secret base they have constructed on Chaos to perform experiments undetected.[5]
References
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 2.0 2.1 2.2 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 3.0 3.1 3.2 3.3 “TNOs are Cool”: A survey of the trans-Neptunian region VI. Herschel/PACS observations and thermal modeling of 19 classical Kuiper belt objects E. Vilenius, C. Kiss, M. Mommert, T. Müller, P. Santos-Sanz, A. Pal, J. Stansberry, M. Mueller, N. Peixinho, S. Fornasier, E. Lellouch, A. Delsanti, A. Thirouin, J. L. Ortiz, R. Duffard, D. Perna, N. Szalai, S. Protopapa, F. Henry, D. Hestroffer, M. Rengel, E. Dotto, & P. Hartogh
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ http://www.quantumvibe.com/strip?page=1013
External links
- Orbital simulation from JPL (Java) / Horizons Ephemeris
- Original Minor Planet Electronic Circular (1998-X08) for 19521 Chaos
- Revised Minor Planet Electronic Circular (1999-V03) 19521 Chaos
- AstDys
- 19521 Chaos at the JPL Small-Body Database
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