144 Vibilia

Infobox Planet | minorplanet = yes | width = 25em | bgcolour = #FFFFC0
name=144 Vibilia
discovery=yes
discovery_ref= [http://cfa-www.harvard.edu/iau/lists/NumberedMPs.html]
discoverer=Christian Heinrich Friedrich Peters
discovered=June 3, 1875
alt_names=
mp_category=Main belt
orbit_ref= [ftp://ftp.lowell.edu/pub/elgb/astorb.html]
epoch=December 31, 2006 (JD 2454100.5)
semimajor=397.086 Gm (2.654 AU)
perihelion=303.539 Gm (2.029 AU)
aphelion=490.632 Gm (3.280 AU)
eccentricity=0.236
period=1579.562 d (4.32 a)
inclination=4.808°
asc_node=76.487°
arg_peri=293.646°
mean_anomaly=62.957°
avg_speed=18.03 km/s
physical_characteristics=yes
dimensions=141.8 km
mass=3.0e|18 kg
density=2.0 g/cm³
surface_grav=0.0396 m/s²
escape_velocity=0.0750 km/s
sidereal_day=? d
axial_tilt=?° | pole_ecliptic_lat=? | pole_ecliptic_lon=?
spectral_type=C
magnitude = 9.97 (brightest)
abs_magnitude=7.91
albedo=0.10
single_temperature=~171 K

144 Vibilia is a dark, large Main belt asteroid and probably primitive in composition.

It is the only large member of the Vibilia asteroid family.

It was discovered by C. H. F. Peters on June 3, 1875 in Clinton, New York and named after Vibilia, a Roman goddess.

Vibilia has been observed to occult a star twice so far (in 1993 and again in 2001).

External links

* [http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=144;orb=1 Orbital simulation] from JPL (Java) / [http://ssd.jpl.nasa.gov/horizons.cgi?find_body=1&body_group=sb&sstr=144 Ephemeris]