Xapeto (lúa)

Iapeto
Jápeto
Jápeto

Descubrimento
Descuberto por Giovanni Cassini
Descuberto o 25 de outubro de 1671
Características orbitais
Radio principal 3 561 300 quilómetros
Excentricidade 0.0286125
Período de revolución 79 d 19 h 17,4 m
Inclinación axial 15,47°
Satélite natural de Saturno
Características físicas
Diámetro principal 1436 km
Área superficie 6,7 millóns km²
Masa 1,9739×1021 kg
Densidade principal 1.27 g/cm³
Gravidade superficial 0,2553 m/s²
Gravidade superficial
(Tierra = 1)
0,02610
Período de rotación 79 d 19 h 17,4 m
Inclinación axial cero
Albedo 0,43
Características atmosféricas
Presión atmosférica non posúe atmosfera

Iapeto ou ocasionalmente Xapeto, e o terceiro satélite natural máis grande de Saturno, o undécimo máis grande no Sistema Solar, e o astro máis grande no Sistema Solar que carece de equilibrio hidroestático. Iapeto e famoso pola súa dramática coloración en dúas tonalidades. Os descubrimentos realizados pola sonda Cassini en 2007 revelaron outras características curiosas, como a existencia dunha inmensa cordilleira ecuatorial que percorre tres cuartas partes da lúa.



Este artigo tan só é un bosquexo
 Este artigo sobre astronomía é, polo de agora, só un bosquexo. Traballa nel para axudar a contribuír a que a Galipedia mellore e medre.
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Lou Gehrig briefly held the single-season RBI record with his 175 in 1927 before Hack Wilson topped this total with 191 in 1930. In total Gehrig was responsible for three of the nine seasons in which a player hit 170 or more RBI.[1] In baseball, a run batted in (RBI) is awarded to a batter for each runner who scores as a result of the batter's action, including a hit, fielder's choice, sacrifice fly, bases loaded walk, or hit by pitch.[2] A batter is also awarded an RBI for sc...

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Pour les articles homonymes, voir Abaque et Abacus (homonymie). Pour l'instrument graphique, voir nomogramme. Abaque boulier : les unités sont placées en haut de la tige inférieure, les multiples de cinq en bas de la tige supérieure, le nombre se lit donc au milieu du boulier ; chaque colonne peut représenter les nombres de 0 à 15 pour le report des retenues par multiples de 5. Abaque (d'abacus en latin et d'abax ἄβαξ en grec signifiant « table à poussière »...

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