124 Alkeste

Infobox Planet | discovery=yes | physical_characteristics = yes | bgcolour=#FFFFC0
name=124 Alkeste
discoverer=Christian Heinrich Friedrich Peters
discovered=August 23, 1872
alt_names=
mp_category=Main belt
epoch=December 31, 2006 (JD 2454100.5)
semimajor=393.427 Gm (2.630 AU)
perihelion=363.297 Gm (2.428 AU)
aphelion=423.558 Gm (2.831 AU)
eccentricity=0.077
period=1557.784 d (4.26 a)
inclination=2.951°
asc_node=188.184°
arg_peri=63.214°
mean_anomaly=253.158°
avg_speed=18.34 km/s
dimensions=76.4 km
mass=4.7e|17 kg
density=? g/cm³
surface_grav=0.0214 m/s²
escape_velocity=0.0404 km/s
rotation=? d
spectral_type=S
abs_magnitude=8.11
albedo=?
single_temperature=~172 K

124 Alkeste is a large Main belt asteroid. It is an S-type. C.H.F. Peters discovered the asteroid on August 23, 1872, and named it after Alcestis, a woman in Greek mythology. Only one stellar occultation by Alkeste has been observed. It passed over the third magnitude star Beta Virginis on June 24, 2003. The event was observed from Australia and New Zealand.