- 21416 Sisichen
Infobox Planet
minorplanet = yes
width = 25em
bgcolour = #FFFFC0
name = Sisichen
symbol =
caption =
discovery = yes
discovery_ref =
discoverer =Lincoln Near-Earth Asteroid Research
discovery_site =Socorro
discovered =March 20 ,1998
designations = yes
mp_name = 21416
alt_names = 1998 FN70
mp_category =
orbit_ref =
epoch =May 14 ,2008
aphelion = 2.7798222
perihelion = 2.0484698
semimajor =
eccentricity = 0.1514723
period = 1370.0730603
avg_speed =
inclination = 6.51516
asc_node = 30.88833
mean_anomaly = 137.77330
arg_peri = 292.40797
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 = 14.821416 Sisichen (1998 FN70) is a
Main-belt Asteroid discovered onMarch 20 ,1998 by theLincoln Near-Earth Asteroid Research (LINEAR) team atSocorro .External links
* [http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=21416+Sisichen JPL Small-Body Database Browser on 21416 Sisichen]
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