- 12261 Ledouanier
Infobox Planet
minorplanet = yes
width = 25em
bgcolour = #FFFFC0
apsis =
name = Ledouanier
symbol =
caption =
discovery = yes
discovery_ref =
discoverer =E. W. Elst
discovery_site =European Southern Observatory
discovered =October 7 ,1989
designations = yes
mp_name = 12261
alt_names = 1989 TY4
mp_category =
orbit_ref =
epoch =May 14 ,2008
aphelion = 2.5803999
perihelion = 1.8761251
semimajor =
eccentricity = 0.1580323
period = 1214.9208069
avg_speed =
inclination = 5.92569
asc_node = 163.94938
mean_anomaly = 293.80979
arg_peri = 116.16865
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 = 15.212261 Ledouanier (1989 TY4) is a
Main-belt Asteroid discovered onOctober 7 ,1989 byE. W. Elst at theEuropean Southern Observatory .External links
* [http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=12261+Ledouanier JPL Small-Body Database Browser on 12261 Ledouanier]
Wikimedia Foundation. 2010.