115 Thyra

Infobox Planet | discovery=yes | physical_characteristics = yes | bgcolour=#FFFFC0
name=115 Thyra
discoverer=James Craig Watson
discovered=August 6, 1871
alt_names=
mp_category=Main belt
epoch=December 31, 2006 (JD 2454100.5)
semimajor=356.054 Gm (2.380 AU)
perihelion=287.821 Gm (1.924 AU)
aphelion=424.287 Gm (2.836 AU)
eccentricity=0.192
period=1341.169 d (3.67 a)
inclination=11.600°
asc_node=308.982°
arg_peri=96.825°
mean_anomaly=248.748°
avg_speed=19.13 km/s
dimensions=79.8 km
mass=5.3e|17 kg
density=? g/cm³
surface_grav=0.0223 m/s²
escape_velocity=0.0422 km/s
rotation=? d
spectral_type=S [* [http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=115 JPL Small-Body Database Browser ] ]
abs_magnitude=7.51
albedo=?
single_temperature=~180 K

115 Thyra is a fairly large and bright inner Main belt asteroid. It was discovered by J. C. Watson on August 6, 1871.

References