139 Juewa

139 Juewa

Infobox Planet | discovery=yes | physical_characteristics = yes | bgcolour=#FFFFC0
name=139 Juewa
discoverer=James Craig Watson
discovered=October 10, 1874
alt_names=
mp_category=Main belt
epoch=December 31, 2006 (JD 2454100.5)
semimajor=416.486 Gm (2.784 AU)
perihelion=344.626 Gm (2.304 AU)
aphelion=488.346 Gm (3.264 AU)
eccentricity=0.173
period=1696.721 d (4.65 a)
inclination=10.902°
asc_node=2.014°
arg_peri=166.350°
mean_anomaly=35.886°
avg_speed=17.72 km/s
dimensions=156.6 km
mass=4.0e|18 kg
density=? g/cm³
surface_grav=0.0438 m/s²
escape_velocity=0.0828 km/s
rotation=? d
spectral_type=CP
abs_magnitude=7.78
albedo=?
single_temperature=~167 K

139 Juewa (pronEng|ˈdʒweɪwɑː "jwey'-waa" ?) is a very large and dark Main belt asteroid. It is probably composed of primitive carbonaceous material. It was the first asteroid discovered from China, in Beijing. It was discovered by the visiting American astronomer James Craig Watson on October 10, 1874; Watson was in China to observe the transit of Venus. Watson asked his hosts to name the asteroid, and they called it 瑞華, which in modern pinyin would be transliterated as "ruìhuá", but was written Juewa according to the spelling conventions of the time. The full name was 瑞華星, or roughly "Star of China’s Fortune". There are three reported stellar occultations by Juewa.


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  • (139) juewa — 139 Juewa pas de photo Caractéristiques orbitales Époque 18 août 2005 (JJ 2453600.5) Demi grand axe 416,395×106 km (2,783 ua) Aphélie …   Wikipédia en Français

  • 139 Juewa — (139) Juewa 139 Juewa pas de photo Caractéristiques orbitales Époque 18 août 2005 (JJ 2453600.5) Demi grand axe 416,395×106 km (2,783 ua) Aphélie …   Wikipédia en Français

  • (139) Juewa — Juewa Descubrimiento Descubridor James Craig Watson Fecha 10 de octubre de 1874 Elementos orbitales …   Wikipedia Español

  • (139) Juewa — 139 Juewa Caractéristiques orbitales Époque 18 août 2005 (JJ 2453600.5) Demi grand axe 416,395×106 km (2,783 ua) Aphélie 488,141×106 km (3,263 ua) Périhélie …   Wikipédia en Français

  • (139) Juewa — Juewa. Asteroide nº 139 de la serie, descubierto el 10 de octubre de 1874 desde Pekín por James Craig Watson (1838 80). Descubierto en la preparación de la observación del tránsito de Venus por el Sol del 9 de diciembre de 1874. 139 Juewa es un… …   Enciclopedia Universal

  • (139) Juewa — Asteroid (139) Juewa Eigenschaften des Orbits (Animation) Orbittyp Hauptgürtel Große Halbachse 2,782 AE …   Deutsch Wikipedia

  • Juewa — Asteroid (139) Juewa Eigenschaften des Orbits (Simulation) Orbittyp Hauptgürtel Große Halbachse 2,783  …   Deutsch Wikipedia

  • Juewa (Asteroid) — Asteroid (139) Juewa Eigenschaften des Orbits (Simulation) Orbittyp Hauptgürtel Große Halbachse 2,783  …   Deutsch Wikipedia

  • 139 (number) — ← 138 140 → 139 ← 130 131 132 133 134 135 136 …   Wikipedia

  • (139) Жуйхуа — Открытие Первооткрыватель Дж. К. Уотсон Место обнаружения Пекин Дата обнаружения 10 октября 1874 Категория Главное кольцо Орбитальные характеристики …   Википедия

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