- 21650 Tilgner
Infobox Planet
minorplanet = yes
width = 25em
bgcolour = #FFFFC0
apsis =
name = Tilgner
symbol =
caption =
discovery = yes
discovery_ref =
discoverer =S. Sposetti
discovery_site =Gnosca
discovered =July 17 ,1999
designations = yes
mp_name = 21650
alt_names = 1999 OB1
mp_category =
orbit_ref =
epoch =May 14 ,2008
aphelion = 2.5840820
perihelion = 2.0168194
semimajor =
eccentricity = 0.1232938
period = 1274.4353508
avg_speed =
inclination = 6.07902
asc_node = 232.95507
mean_anomaly = 217.74589
arg_peri = 50.07976
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 = 15.821650 Tilgner (1999 OB1) is a
Main-belt Asteroid discovered onJuly 17 ,1999 byS. Sposetti atGnosca .External links
* [http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=21650+Tilgner JPL Small-Body Database Browser on 21650 Tilgner]
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