21770 Wangyiran

Infobox Planet
minorplanet = yes
width = 25em
bgcolour = #FFFFC0
apsis =
name = Wangyiran
symbol =


caption =
discovery = yes
discovery_ref =
discoverer = Lincoln Laboratory Near-Earth Asteroid Research Team
discovery_site = Socorro
discovered = September 8, 1999
designations = yes
mp_name = 21770
alt_names = 1999 RF211
mp_category =
orbit_ref =
epoch = May 14, 2008
aphelion = 2.4671985
perihelion = 2.2361991
semimajor =
eccentricity = 0.0491133
period = 1317.2583901
avg_speed =
inclination = 5.07145
asc_node = 293.80544
mean_anomaly = 149.22754
arg_peri = 72.19081
satellites =
physical_characteristics = yes
dimensions =
mass =
density =
surface_grav =
escape_velocity =
sidereal_day =
axial_tilt =
pole_ecliptic_lat =
pole_ecliptic_lon =
albedo =
temperatures=
temp_name1 =
mean_temp_1 =
max_temp_1 =
temp_name2 =
max_temp_2 =
spectral_type =
abs_magnitude = 14.7

21770 Wangyiran (1999 RF211) is a Main-belt Asteroid discovered on September 8, 1999 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.

External links

* [http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=21770+Wangyiran JPL Small-Body Database Browser on 21770 Wangyiran]