98 Ianthe

Infobox Planet | discovery=yes | physical_characteristics = yes | bgcolour=#FFFFC0
name=98 Ianthe
discoverer=Christian Heinrich Friedrich Peters
discovered=April 18, 1868
alt_names=
mp_category=Main belt
epoch=December 31, 2006 (JD 2454100.5)
semimajor=401.616 Gm (2.685 AU)
perihelion=325.503 Gm (2.176 AU)
aphelion=477.729 Gm (3.193 AU)
eccentricity=0.190
period=1606.670 d (4.40 a)
inclination=15.613°
asc_node=354.137°
arg_peri=158.566°
mean_anomaly=198.904°
avg_speed=18.01 km/s
dimensions=104.5 km
mass=1.2e|18 kg
density=? g/cm³
surface_grav=0.0292 m/s²
escape_velocity=0.0552 km/s
rotation=? d
spectral_type=C
abs_magnitude=8.84
albedo=0.047 [ [http://www.psi.edu/pds/resource/albedo.html Asteroid Data Sets ] ]
single_temperature=~170 K

98 Ianthe "(eye-an'-thee," IPAEng|aɪˈænθi) is a large main belt asteroid. It is very dark and is composed of carbonates. It was one of the numerous (for his time) discoveries by C. H. F. Peters, who found it on April 18, 1868 from Clinton, New York.

References