- 8431 Haseda
Infobox Planet
minorplanet = yes
width = 25em
bgcolour = #FFFFC0
apsis =
name = Haseda
symbol =
caption =
discovery = yes
discovery_ref =
discoverer =T. Kobayashi
discovery_site =Oizumi
discovered =December 31 ,1997
designations = yes
mp_name = 8431
alt_names = 1997 YQ13
mp_category =
orbit_ref =
epoch =May 14 ,2008
aphelion = 2.9476078
perihelion = 2.6626306
semimajor =
eccentricity = 0.0507959
period = 1716.0320629
avg_speed =
inclination = 1.59826
asc_node = 246.74519
mean_anomaly = 93.72098
arg_peri = 215.14611
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 = 12.58431 Haseda (1997 YQ13) is a
Main-belt Asteroid discovered onDecember 31 ,1997 byT. Kobayashi atOizumi .External links
* [http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=8431+Haseda JPL Small-Body Database Browser on 8431 Haseda]
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