(55565) 2002 AW197

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The correct title of this article is (55565) 2002 AW₁₉₇. It features superscript or subscript characters that are substituted or omitted because of technical limitations.

**(55565) 2002 AW₁₉₇**
Discovery ^A

Discoverer	Michael E. Brown, Eleanor F. Helin, Michael Hicks, Kenneth Lawrence, Steven H. Pravdo, Chad Trujillo
Discovery date	January 10, 2002
Alternate designations ^B	none
Category	Trans-Neptunian object
Orbital elements ^C
Epoch January 30, 2005 (JD2453400.5)
Eccentricity (e)	0.1308
Semi-major axis (a)	47.4873 AU
Perihelion (q)	41.2764 AU
Aphelion (Q)	53.6983 AU
Orbital period (P)	327.2468 y
Mean orbital speed
Inclination (i)	24.3498 °
Longitude of the ascending node (Ω)	297.4570 °
Argument of perihelion (ω)	293.4346 °
Mean anomaly (M)	281.6490 °
Physical characteristics ^D
Dimensions	793 km
Mass	?×10^? kg
Density	? g/cm³
Surface gravity	? m/s²
Escape velocity	? km/s
Rotation period	? d
Spectral class	?
Absolute magnitude	3.27
Albedo (geometric)	0.17±0.03
Mean surface temperature	~? K

(55565) 2002 AW₁₉₇ is a trans-Neptunian object. It was discovered in 2002 by Michael E. Brown et al. It is classified as a cubewano.

Observations of thermal emissions by Spitzer give a diameter of 700±50km and a higher than expected of albedo 0.17±0.03.

ESO analysis of spectra reveals a strong red slope and no presence of water ice (in contrast to Quaoar, also red) suggesting organic material (see comparison of colours and typical composition inferred from spectra of the TNOs).

[edit] External links

AstDys orbital elements
Orbital simulation from JPL (Java)

[edit] References

D.Cruikshank et al. High Albedo KBO (55565)2002 AW₁₉₇, The Astronomical Journal Letters, 624,53 (May 2004). Abstract
Doressoundiram, A.; Barucci, M. A.; Tozzi, G. P.; Poulet, F.; Boehnhardt, H.; de Bergh, C.; Peixinho, N. Spectral characteristics and modeling of the trans-neptunian object (55565) 2002 AW197 and the Centaurs (55576) 2002 GB10 and (83982) 2002 GO9: ESO Large Program on TNOs and Centaurs. Planetary and Space Science, 53, Issue 14-15, p. 1501-1509 (2005). Abstract

v • d • e</span>

Trans-Neptunian objects

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: 1998 WW₃₁ | 1992 QB₁ | 1994 GV₉ | 1994 JQ₁ | 1994 VK₈ | 1996 TO₆₆ | 19521 Chaos | 53311 Deucalion | 2002 AW₁₉₇ | 20000 Varuna | 50000 Quaoar | 2002 MS₄ | 2002 TX₃₀₀ | 2002 UX₂₅ | 58534 Logos | 2004 GV₉| 2003 EL₆₁ | 2005 FY₉ | Unnumbered: | 2003 QW₉₀ | 2005 RN₄₃

Twotinos: Unnumbered: 1996 TR₆₆ | 1998 SM₁₆₅ | 1997 SZ₁₀ | 1999 RB₂₁₆ | 2000 JG₈₁

Scattered disc objects: Eris* | 2002 TC₃₀₂ | 1995 TL₈ | 1996 GQ₂₁ | 1996 TL₆₆ | 2000 OO₆₇ | 2000 OM₆₇ | 2001 KC₇₇ | 2001 UR₁₆₃ | 2002 CY₂₂₄ | 2002 GX₃₂ | 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 SN₁₆₅ 1998 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

* - Also classified as a dwarf planet ** - Currently classified as an SDO, though may be part of the Inner Oort Cloud

Minor planets
Previous minor planet	(55565) 2002 AW₁₉₇	Next minor planet

v • d • e</span>

Large trans-Neptunian objects

Kuiper belt: Orcus | Pluto (Charon) | Ixion | 2002 UX₂₅ | Varuna | 2002 TX₃₀₀ | 2003 EL₆₁ | Quaoar | 2005 FY₉ | 2002 AW₁₉₇

Scattered disc: 2002 TC₃₀₂ | Eris | 2004 XR₁₉₀ | Sedna

See also Triton, astronomical objects and the solar system's list of objects, sorted by radius or mass.
For pronunciation, see: Centaur and TNO pronunciation.

v • d • e</span> Small Solar System bodies
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.