122 Gerda


122 Gerda

Infobox Planet | discovery=yes | physical_characteristics = yes | bgcolour=#FFFFC0
name=122 Gerda
discoverer=Christian Heinrich Friedrich Peters
discovered=July 31, 1872
alt_names=
mp_category=Main belt
epoch=December 31, 2006 (JD 2454100.5)
semimajor=481.975 Gm (3.222 AU)
perihelion=462.356 Gm (3.091 AU)
aphelion=501.593 Gm (3.353 AU)
eccentricity=0.041
period=2112.255 d (5.78 a)
inclination=1.639°
asc_node=178.433°
arg_peri=325.878°
mean_anomaly=283.072°
avg_speed=16.59 km/s
dimensions=81.7 km
mass=5.7e|17 kg
density=? g/cm³
surface_grav=0.0228 m/s²
escape_velocity=0.0432 km/s
rotation=? d
spectral_type=S
abs_magnitude=7.87
albedo=?
single_temperature=~155 K

122 Gerda is a fairly large outer main belt asteroid. It is an S-type. It was discovered by C. H. F. Peters on July 31, 1872 and named after Gerda, the wife of the god Freyr in Norse mythology.


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  • 122 Gerda — (122) Gerda 122 Gerda pas de photo Caractéristiques orbitales Époque 18 août 2005 (JJ 2453600.5) Demi grand axe 481,874×106 km (3,221 ua) Aphélie …   Wikipédia en Français

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