(137295) 1999 RB216

Infobox Planet | discovery=yes | physical_characteristics=yes | bgcolour=#FFFFC0
name=(137295) 1999 RB₂₁₆
discoverer=C. A. Trujillo, D. C. Jewitt, and J. X. Luu [ [http://cfa-www.harvard.edu/iau/lists/TNOs.html List Of Transneptunian Objects ] ]
discovered=September 8, 1999
mp_name=mp|(137295) 1999 RB|216
alt_names="none"
mp_category=twotino
epoch=
semimajor=47.420 AU
perihelion=33.655 AU
aphelion=61.184
eccentricity=0.290
period=119104 d (326.09 a) [ [http://hamilton.dm.unipi.it/cgi-bin/astdys/astibo?objects:1999RB216;main AstDyS: (137295) 1999RB216 ] ]
inclination=12.7°
asc_node=175.7°
arg_peri=208.3°
mean_anomaly=352.4°
avg_speed=
dimensions=153 km [ [http://www.johnstonsarchive.net/astro/tnoslist.html List of known trans-Neptunian objects ] ]
mass=
density=
surface_grav=
escape_velocity=
sidereal_day=
spectral_type=
abs_magnitude=7.3
albedo=0.09 (assumed)
single_temperature=

(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.

References