- 4990 Trombka
Infobox Planet
minorplanet = yes
width = 25em
bgcolour = #FFFFC0
apsis =
name = Trombka
symbol =
caption =
discovery = yes
discovery_ref =
discoverer =S. J. Bus
discovery_site =Siding Spring Observatory
discovered =March 2 ,1981
designations = yes
mp_name = 4990
alt_names = 1981 ET26
mp_category =
orbit_ref =
epoch =May 14 ,2008
aphelion = 2.6299326
perihelion = 1.8339982
semimajor =
eccentricity = 0.1783035
period = 1217.9504377
avg_speed =
inclination = 3.88800
asc_node = 353.52505
mean_anomaly = 339.87680
arg_peri = 278.20971
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 = 14.14990 Trombka (1981 ET26) is a
Main-belt Asteroid discovered onMarch 2 ,1981 byS. J. Bus atSiding Spring Observatory in the course of theU.K. Schmidt-Caltech Asteroid Survey .External links
* [http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=4990+Trombka JPL Small-Body Database Browser on 4990 Trombka]
Wikimedia Foundation. 2010.