19521 Chaos
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| Discovery A | |
|---|---|
| Discoverer | Deep Ecliptic Survey |
| Discovery date | November 19, 1998 |
| Alternate designations B |
1998 WH24 |
| Category | Kuiper belt, TNO |
| Orbital elements C | |
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| Eccentricity (e) | 0.102 |
| Semi-major axis (a) | 45.599 AU |
| Perihelion (q) | 40.929 AU |
| Aphelion (Q) | 50.269 AU |
| Orbital period (P) | 309.1006 y |
| Mean orbital speed | 4.3931 km/s |
| Inclination (i) | 12.0550° |
| Longitude of the ascending node (Ω) |
50.0103° |
| Argument of perihelion (ω) |
58.6836° |
| Mean anomaly (M) | 324.2844° |
| Physical characteristics D | |
| Dimensions | ~560 km |
| Mass | |
| Density | |
| Surface gravity | |
| Escape velocity | |
| Rotation period | 3.985(days) |
| Spectral class | |
| Absolute magnitude | 4.755 |
| Albedo (geometric) | |
| Mean surface temperature |
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19521 Chaos (1998 WH24) is a cubewano, a Kuiper belt object not in resonance with any planet. Chaos was discovered in 1998 by the Deep Ecliptic Survey, with Kitt Peak's 4 m telescope. It is large at about 560 km, and bright at H=4.755. It is named after the primeval state of existence in Greek mythology, from which the first gods appeared.
[edit] References
- Catchall Catalog of Minor Planets
- original MPEC circular 1998-X08and the revision, 1999-V03
- AstDys
- JPL neo page
| Minor planets | ||
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| Previous minor planet | 19521 Chaos | Next minor planet |
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| Vulcanoids | Near-Earth asteroids | Main belt | Jupiter Trojans | Centaurs | Damocloids | Comets | Trans-Neptunians (Kuiper belt · Scattered disc · Oort cloud) |
| For other objects and regions, see: asteroid groups and families, binary asteroids, asteroid moons and the Solar system For a complete listing, see: List of asteroids. See also Pronunciation of asteroid names and Meanings of asteroid names. |
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| Plutinos : Pluto* | 1993 RO | 1993 RP | 1993 SB | 1993 SC | 1994 TB | 1995 QZ9 | 1996 SZ4 | 1996 TP66 | 38083 Rhadamanthus | 38628 Huya | 28978 Ixion | 2003 VS2 | 90482 Orcus | Unnumbered: 2003 AZ84
Cubewanos: 1992 QB1 | 1994 GV9 | 1994 JQ1 | 1994 VK8 | 1996 TO66 | 58534 Logos| 1998 WW31 | 19521 Chaos | 53311 Deucalion | 20000 Varuna | 2002 AW197 | 50000 Quaoar | 2002 MS4 | 2002 TX300 | 2002 UX25 | 2003 EL61 | 2004 GV9| 2005 FY9 | Unnumbered: | 2003 QW90 | 2005 RN43 Twotinos: 2002 WC19 | 1996 TR66 | Unnumbered: 1998 SM165 | 1997 SZ10 | 1999 RB216 | 2000 JG81 Scattered disc objects: Eris* | 1995 TL8 | 1996 GQ21 | 1996 TL66 | 2000 OO67 | 2000 OM67 | 2001 KC77 | 2001 UR163 | 2002 CY224 | 2002 GX32 | 2002 TC302 | 90377 Sedna** Unnumbered: 2004 XR190 Unclassified Objects : 1994 JS | 1994 JR1 | 1995 DA2 | 1995 SM55 | 1996 TQ66 | 1997 CR29 | 1997 CS29 | 1997 CU29 | 1997 QJ4 | 1998 HJ151 | 1998 HK151 | 1998 HP151 | 1998 HM151 | 1998 KR65 | 1998 SM165 | 1998 SN1651998 US43 | 1998 VG44 | 1998 WW24 | 1998 WA31 | 1998 WU31 | 1998 WA25 | 1999 CP133 | 1999 CL158 | 1999 CC158 | 1999 DF9 | 1999 HT11 | 1999 HB12 | 1999 HC12 | 1999 KR16 | 1999 OY3 Natural satellites : Charon (Pluto) | Hydra (Pluto) | Nix (Pluto) | Dysnomia (Eris) | S/2000 (1998 WW31) 1 | S/2005 (2003 EL61) 1 | S/2005 (2003 EL61) 2 | (58534) Logos I Zoe |
| * - Also classified as a dwarf planet ** - Currently classified as an SDO, though may be part of the Inner Oort Cloud |
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