that are close together.Sirius A is about 1.7 times the diameterof the Sun. Sirius B is much smaller,with a diameter that is about10% less than Earth's.©Learning Resources, Inc., Vernon Hills, IL (U.S.A.)
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AverageDistance Approximate ApproximateVolume Numberof PlanetType Rings
fromthe Sun Diameter (ComparedtoEarth) KnownMoons
(asof 2009)
TheSun n/a 1,392,000km About1,300,000 times
(864,000miles) greaterthan Earth's n/a n/a n/a
InnerPlanets
Mercury 5.79million km 4,879km
(35million miles) (3,032 miles) About6% of Earth's 0 Rocky/Terrestrial No
Venus 108million km 12,104km
(67million miles) (7,521 miles) About 86% of Earth's 0 Rocky/Terrestrial No
Earth 149million km 12,756km 1.08x 1012 km3
(93million miles) (7,926 miles) (261billion cubic miles) 1 Rocky/Terrestrial No
Mars 227million km 6,792km
(141million miles) (4,222miles) About 15% of Earth's 2 Rocky/Terrestrial No
OuterPlanets
Jupiter 778million km 142,984km About 1,316 times
(483million miles) (88,846 miles) greater than Earth's 63 Mostly Gas Yes
Saturn 1.4trillion km 120,536 km About752 times
(886million miles) (72,367 miles) greater than Earth's 60 Mostly Gas Yes
Uranus 2.8trillion km 57,118km About67 times
(1.78trillion miles) (31,518miles) greaterthan Earth's 27 Mostly Gas Yes
Neptune 4.5trillion km 49,528km About54 times
(2.79trillion miles) (30,601miles) greaterthan Earth's 13 Mostly Gas Yes
Pluto 5.9 trillion km 2,390 km Lessthan1%
(DwarfPlanet) (3.67trillion miles) (1,491 miles) ofEarth's 3 Mostly Gas & Ice No