(137295) 1999 RB216

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The correct title of this article is (137295) 1999 RB₂₁₆. It features superscript or subscript characters that are substituted or omitted because of technical limitations.

**(137295) 1999 RB₂₁₆**
Discovery
Discovered by	C. A. Trujillo, D. C. Jewitt, and J. X. Luu^[1]
Discovery date	September 8, 1999
Designations
MPC designation	(137295) 1999 RB₂₁₆
Alternative names	none
Minor planet category	twotino
Orbital characteristics
Aphelion	61.184
Perihelion	33.655 AU
Semi-major axis	47.420 AU
Eccentricity	0.290
Orbital period	119104 d (326.09 a)^[2]
Mean anomaly	352.4°
Inclination	12.7°
Longitude of ascending node	175.7°
Argument of perihelion	208.3°
Physical characteristics
Dimensions	153 km^[3]
Albedo	0.09 (assumed)
Absolute magnitude	7.3

(137295) 1999 RB₂₁₆, also written as 1999 RB216, is a trans-Neptunian object that resides in the Kuiper belt. It was discovered on September 8, 1999 by Chad Trujillo, David C. Jewitt, and Jane X. Luu.

It is in a 2:1 orbital resonance with the planet Neptune.

[edit] References

v • d • e Small Solar System bodies

Asteroids (Vulcanoids · Near-Earth · Main belt · Jupiter Trojans · Centaurs · Damocloids · Neptune Trojans · Groups · Families · Moons) Comets · Trans-Neptunians (Kuiper belt · Scattered disc objects · Oort cloud) · Minor planets · Meteoroids

Lists: Minor planets · Asteroid groups and families · Binary asteroids · Asteroid moons See also: Near-Earth object · Dwarf planet · Planet · Solar System · Pronunciation of asteroid names · Meanings of asteroid names.

v • d • e Trans-Neptunian objects

Pronunciation guide Objects in italics are unnnumbered.

Plutinos	Pluto¹ · 1993 SB · 1993 SC · 1994 JR₁ · 1994 TB · 1995 QZ₉ · 1996 SZ₄ · 1996 TP₆₆ · 1996 TQ₆₆ · 1997 QJ₄ · 1998 HK₁₅₁ · 1998 US₄₃ · 1998 VG₄₄ · 1998 WW₂₄ · 1998 WU₃₁ · 38083 Rhadamanthus · 1999 TC₃₆ · 38628 Huya · 28978 Ixion · 2002 KX₁₄ · 2002 VR₁₂₈ · 2003 VS₂ · 90482 Orcus · 1993 RO · 1993 RP · 2003 AZ₈₄ · 2001 QF₂₉₈

Cubewanos	1992 QB₁ · 1994 GV₉ · 1994 JQ₁ · 1994 VK₈ · 1995 GJ · 1995 SM₅₅ · 1996 TO₆₆ · 58534 Logos · 1997 CS₂₉ · 1997 CU₂₉ · 1998 HJ₁₅₁ · 1998 HP₁₅₁ · 1998 HM₁₅₁ · 1998 KR₆₅ · 19521 Chaos · 1998 WA₂₅ · 1999 DF₉ · 1999 HT₁₁ · 53311 Deucalion · 20000 Varuna · 2002 AW₁₉₇ · 50000 Quaoar · 2002 TX₃₀₀ · 2002 UX₂₅ · 2003 EL₆₁ · 2003 OP₃₂ · 2004 GV₉ · 2005 FY₉ · 2005 RN₄₃ · 88611 Teharonhiawako · 1998 WW₃₁ · 2002 MS₄ · 2003 MW₁₂ · 2003 QW₉₀

Twotinos	1996 TR₆₆ · 1998 SM₁₆₅ · 1999 RB₂₁₆ · 2000 JG₈₁ · 2002 WC₁₉ · 1997 SZ₁₀

Other resonant objects	1994 JS · 1995 DA₂ · 1998 WA₃₁ · 1999 CP₁₃₃ · 1999 DE₉ · 1999 HB₁₂ · 2001 KC₇₇ · 2001 KP₇₇ · 2002 TC₃₀₂ · 2003 LG₇

Scattered disc objects	Eris^{1, 2} · 1995 TL₈ · 1996 GQ₂₁ · 1996 TL₆₆ · 1999 CC₁₅₈ · 2000 EE₁₇₃ · 2000 OO₆₇ · 2000 OM₆₇ · 2001 UR₁₆₃ · 2002 CY₂₂₄ · 2002 GX₃₂ · 2002 RP₁₂₀ · 90377 Sedna² · 2005 RM₄₃ · 2000 CR₁₀₅ 2004 XR₁₉₀ · 2005 TN₇₄ · 2006 QH₁₈₁

Unclassified	1997 CR₂₉ · 1998 SN₁₆₅ · 1999 CL₁₅₈ · 1999 HC₁₂ · 1999 KR₁₆ · 1999 OY₃ · 2003 FY₁₂₈ · 2004 SB₆₀ · 2004 TY₃₆₄ · 2005 RR₄₃

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 · Zoe (Logos) · S/2005 (79360) 1 · Sawiskera (Teharonhiawako)

¹ Also classified as a dwarf planet. ² Although currently classified as an SDO, Eris and Sedna may be part of the inner Oort Cloud.