- 69 Hesperia
Infobox Planet | discovery=yes | physical_characteristics = yes | bgcolour=#FFFFC0 | name=69 Hesperia
discoverer=G. Schiaparelli
discovered=April 26 ,1869
alt_names=
mp_category=Main belt
epoch=(absent)
semimajor=445.8 Gm (2.980 AU)
perihelion=372.3 Gm (2.489 AU)
aphelion=519.3 Gm (3.471 AU)
eccentricity=0.165
period=1879 d (5.14 a)
inclination=8.59°
asc_node=
arg_peri=
mean_anomaly=
avg_speed=
dimensions=138.13 km
mass=
density=
surface_grav=
escape_velocity=
rotation=5.655 h
spectral_type=M
abs_magnitude=7.05
albedo=0.140
single_temperature=69 Hesperia "(hes-peer'-ee-ə," IPAEng|hɛsˈpɪriə) is a large, M-type
main belt asteroid .Hesperia was discovered by the famous Italian
astronomer Giovanni Schiaparelli onApril 26 ,1861 . It was his only asteroid discovery. It is named after one of theHesperides inGreek mythology .
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