- 21254 Jonan
Infobox Planet
minorplanet = yes
width = 25em
bgcolour = #FFFFC0
apsis =
name = Jonan
symbol =
caption =
discovery = yes
discovery_ref =
discoverer =J. Kobayashi
discovery_site =Kumamoto Civil Astronomical Observatory
discovered =January 24 ,1996
designations = yes
mp_name = 21254
alt_names = 1996 BG2
mp_category =
orbit_ref =
epoch =May 14 ,2008
aphelion = 2.8279270
perihelion = 2.5169644
semimajor =
eccentricity = 0.0581794
period = 1595.7385978
avg_speed =
inclination = 21.44275
asc_node = 329.37637
mean_anomaly = 300.91896
arg_peri = 128.54253
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 = 12.821254 Jonan (1996 BG2) is a
Main-belt Asteroid discovered onJanuary 24 ,1996 byJ. Kobayashi at theKumamoto Civil Astronomical Observatory .References
External links
* [http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=21254+Jonan JPL Small-Body Database Browser on 21254 Jonan]
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