- 113 Amalthea
Infobox Planet | discovery=yes | physical_characteristics = yes | bgcolour=#FFFFC0
name=113 Amalthea
discoverer=Karl Theodor Robert Luther
discovered=March 12 ,1871
alt_names=
mp_category=Main belt
epoch=December 31 ,2006 (JD 2454100.5)
semimajor=355.426 Gm (2.376 AU)
perihelion=324.208 Gm (2.167 AU)
aphelion=386.645 Gm (2.585 AU)
eccentricity=0.088
period=1337.627 d (3.66 a)
inclination=5.037°
asc_node=123.592°
arg_peri=79.051°
mean_anomaly=4.657°
avg_speed=19.29 km/s
dimensions=46.1 km
mass=1.0e|17 kg
density=? g/cm³
surface_grav=0.0129 m/s²
escape_velocity=0.0244 km/s
rotation=? d
spectral_type=S
abs_magnitude=8.74
albedo=?
single_temperature=~181 K113 Amalthea is a fairly typical rocky
Main belt asteroid orbit ing in the inner regions of the belt. It was discovered by R. Luther onMarch 12 ,1871 .Amalthea is thought to be a fragment from the mantle of a Vesta-sized parent body that broke up around one billion years ago, with the other major remnant being
9 Metis .The name comes from Amalthea of
Greek mythology . One of Jupiter's inner small satellites, unrelated to 113 Amalthea, is also called Amalthea.
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