- 21811 Burroughs
Infobox Planet
minorplanet = yes
width = 25em
bgcolour = #FFFFC0
apsis =
name = Burroughs
symbol =
caption =
discovery = yes
discovery_ref =
discoverer =R. A. Tucker
discovery_site =Goodricke-Pigott Observatory
discovered =October 5 ,1999
designations = yes
mp_name = 21811
alt_names = 1999 TR20
mp_category =
orbit_ref =
epoch =May 14 ,2008
aphelion = 3.5455007
perihelion = 2.7975043
semimajor =
eccentricity = 0.1179246
period = 2062.9847584
avg_speed =
inclination = 5.13520
asc_node = 11.87676
mean_anomaly = 116.68242
arg_peri = 89.30911
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 = 14.121811 Burroughs (1999 TR20) is a
Main-belt Asteroid discovered onOctober 5 ,1999 byR. A. Tucker at theGoodricke-Pigott Observatory .External links
* [http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=21811+Burroughs JPL Small-Body Database Browser on 21811 Burroughs]
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