126 Velleda

Infobox Planet | discovery=yes | physical_characteristics = yes | bgcolour=#FFFFC0
name=126 Velleda
discoverer=Paul Henry and Prosper Henry
discovered=November 5, 1872
alt_names=
mp_category=Main belt
epoch=December 31, 2006 (JD 2454100.5)
semimajor=364.838 Gm (2.438644cite web | date = 2003-08-29 | url = http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=126 | title = 126 Velleda | work = JPL Small-Body Database Browser | publisher = NASA JPL | accessdate = 2007-03-12 ] AU)
perihelion=326.153 Gm (2.180 AU)
aphelion=403.523 Gm (2.697 AU)
eccentricity=0.1060806
period=1391.107 d (3.81 a)
inclination=2.92451°
asc_node=23.47325°
arg_peri=327.94065°
mean_anomaly=117.027°
avg_speed=19.02 km/s
dimensions=44.82 km
mass=9.4e|16 kg
density=? g/cm³
surface_grav=0.0125 m/s²
escape_velocity=0.0237 km/s
rotation=5.364 ± 0.003 dcite journal | author=Dovgopol, A. N.; Kruglyi, Iu. N.; Shevchenko, V. G. | title=Asteroid 126 Velleda - Rotation period and magnitude-phase curve | journal=Acta Astronomica | year=1992 | volume=42 | issue=1 | pages=67–72 | url=http://adsabs.harvard.edu/abs/1992AcA....42...67D | accessdate=2007-03-13 ]
spectral_type=S
abs_magnitude=9.27
albedo=0.1723
single_temperature=~178 K

126 Velleda is a Main belt asteroid. It is probably a rather typical, albeit sizable, S-type asteroid. It was discovered by Paul Henry on November 5, 1872 in Paris, France. It was his first credited discovery. He and his brother Prosper Henry discovered a total of 14 asteroids.

This asteroid rotates once every 5 days, 8 hours and 44 minutes. During each rotation the light curve varies by 0.22 magnitudes.

References