- 8489 Boulder
Infobox Planet
minorplanet = yes
width = 25em
bgcolour = #FFFFC0
apsis =
name = Boulder
symbol =
caption =
discovery = yes
discovery_ref =
discoverer =E. W. Elst
discovery_site =European Southern Observatory
discovered =October 7 ,1989
designations = yes
mp_name = 8489
alt_names = 1989 TA3
mp_category =
orbit_ref =
epoch =May 14 ,2008
aphelion = 3.5097656
perihelion = 2.7775972
semimajor =
eccentricity = 0.1164508
period = 2035.8990072
avg_speed =
inclination = 5.83549
asc_node = 147.40350
mean_anomaly = 253.65428
arg_peri = 91.50733
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 = 13.68489 Boulder (1989 TA3) 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=8489+Boulder JPL Small-Body Database Browser on 8489 Boulder]
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