- 4809 Robertball
Infobox Planet
minorplanet = yes
width = 25em
bgcolour = #FFFFC0
apsis =
name = Robertball
symbol =
caption =
discovery = yes
discovery_ref =
discoverer =M. F. Wolf
discovery_site =Heidelberg
discovered =September 5 ,1928
designations = yes
mp_name = 4809
alt_names = 1928 RB
mp_category =
orbit_ref =
epoch =May 14 ,2008
aphelion = 3.2061751
perihelion = 1.9295039
semimajor =
eccentricity = 0.2485886
period = 1502.9697430
avg_speed =
inclination = 13.67782
asc_node = 169.33998
mean_anomaly = 131.63275
arg_peri = 173.57208
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 = 13.54809 Robertball (1928 RB) is a
Main-belt Asteroid discovered onSeptember 5 ,1928 byM. F. Wolf atHeidelberg .External links
* [http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=4809+Robertball JPL Small-Body Database Browser on 4809 Robertball]
Wikimedia Foundation. 2010.