Unique UranusUnique Uranus

Ariel ToombsAriel Toombs

Kimberly TaylorKimberly Taylor

Unique Uranus

General InformationGeneral Information Uranus is the seventh planet Uranus is the seventh planet

from the Sun.from the Sun.

It is the third largest by It is the third largest by diameter.diameter.

One of the Giant Planets or One of the Giant Planets or Gas PlanetsGas Planets

The name “Uranus” comes The name “Uranus” comes from the ancient Greek god of from the ancient Greek god of the Heavens, the earliest the Heavens, the earliest supreme god.supreme god.

Uranus Video

Size, Shape, & OrbitSize, Shape, & Orbit

Orbit: 2,870,990,000 km away from the Orbit: 2,870,990,000 km away from the SunSun

Diameter: 51,118 km Diameter: 51,118 km

Mass: 8.683 kg Mass: 8.683 kg Uranus has a larger diameter than Neptune, Uranus has a larger diameter than Neptune,

but a smaller mass. but a smaller mass.

Uranus vs. EarthUranus vs. Earth

Uranus is about 4 Uranus is about 4 times the size of times the size of Earth.Earth.

It is about 14 times It is about 14 times the mass of Earth.the mass of Earth.

The rotation of The rotation of Uranus is about 18 Uranus is about 18 Earth hours. Earth hours.

One Uranus year is One Uranus year is about 84 Earth years.about 84 Earth years.

Each season on Each season on Uranus lasts about 42 Uranus lasts about 42 years. years.

Uranian MoonsUranian Moons According to some sites, According to some sites,

Uranus has 21 named Uranus has 21 named moons, 6 unnamed ones. moons, 6 unnamed ones.

The names of the Uranian The names of the Uranian moons come from the moons come from the writings of Shakespeare writings of Shakespeare and the Pope.and the Pope.

The moons form three The moons form three distinct classes: the 11 distinct classes: the 11 small very dark, inner ones, small very dark, inner ones, the 5 large ones, and the the 5 large ones, and the newly discovered much newly discovered much more distant ones.more distant ones.

Uranian Moons Uranian Moons MOON NAME:MOON NAME: DISCOVERER & DISCOVERER &

DATE:DATE:DISTANCE FROM DISTANCE FROM URANUS:URANUS:

CordeliaCordelia Voyager 2 – 1986Voyager 2 – 1986 50 km50 km

OpheliaOphelia Voyager 2 – 1986Voyager 2 – 1986 54 km54 km

BiancaBianca Voyager 2 – 1986Voyager 2 – 1986 59 km59 km

CressidaCressida Voyager 2 – 1986Voyager 2 – 1986 62 km62 km

DesdemonaDesdemona Voyager 2 – 1986Voyager 2 – 1986 63 km63 km

JulietJuliet Voyager 2 – 1986Voyager 2 – 1986 64 km64 km

PortiaPortia Voyager 2 – 1986Voyager 2 – 1986 66 km66 km

RosalindRosalind Voyager 2 – 1986Voyager 2 – 1986 70 km70 km

BelindaBelinda Voyager 2 – 1986Voyager 2 – 1986 75 km75 km

PuckPuck Voyager 2 – 1986Voyager 2 – 1986 86 km86 km

MirandaMiranda Kuiper – 1948Kuiper – 1948 130 km130 km

ArielAriel Lassell – 1851Lassell – 1851 191 km191 km

Uranian MoonsUranian MoonsMOON NAME:MOON NAME: DISCOVERER & DISCOVERER &

DATE:DATE:DISTANCE FROM DISTANCE FROM URANUS:URANUS:

UmbrielUmbriel Lassell – 1851Lassell – 1851 266 km266 km

TitaniaTitania Herschel – 1787 Herschel – 1787 436 km436 km

OberonOberon Herschel – 1787 Herschel – 1787 583 km583 km

CalibanCaliban Gladman – 1997 Gladman – 1997 7169 km7169 km

StephanoStephano Gladman – 1999 Gladman – 1999 7948 km7948 km

TrinculoTrinculo UnknownUnknown 8578 km8578 km

SycoraxSycorax Nicholson – 1997 Nicholson – 1997 12213 km12213 km

ProsperoProspero Holman – 1999 Holman – 1999 16568 km16568 km

SetebosSetebos Kavelaars - 1999Kavelaars - 1999 17681 km17681 km

Discovery of UranusDiscovery of Uranus

Uranus was the first planet to be Uranus was the first planet to be discovered using a telescope. discovered using a telescope.

Sir William Herschel discovered the planet Sir William Herschel discovered the planet in 1781. in 1781. However, people had observed and plotted However, people had observed and plotted

Uranus on star charts dating back to 1690, Uranus on star charts dating back to 1690, believing it was a star. believing it was a star.

Inside UranusInside Uranus

Uranus has an inner rocky core.Uranus has an inner rocky core.The core of Uranus is probably smaller The core of Uranus is probably smaller

than the Earth’s core. than the Earth’s core. Uranus’s core may be small because most Uranus’s core may be small because most

of the rock on the planet is floating in its of the rock on the planet is floating in its ocean. ocean.

Unlike the other giant planets, Uranus Unlike the other giant planets, Uranus radiates little heat into space from its deep radiates little heat into space from its deep interior.interior.

Surface on UranusSurface on Uranus

An ocean covers most of the planet. An ocean covers most of the planet. The ocean that is on Uranus accounts for most The ocean that is on Uranus accounts for most

of the planet’s volume. of the planet’s volume. The ocean most likely consists of water molecules, The ocean most likely consists of water molecules,

mixed with other elements. mixed with other elements. This ocean is EXTREMELY HOT, about 6650This ocean is EXTREMELY HOT, about 6650ºC ºC

(12,000ºF). (12,000ºF). The ocean on Uranus remains liquid at such a high The ocean on Uranus remains liquid at such a high

temperature, because the pressure deep in Uranus is about temperature, because the pressure deep in Uranus is about five million times stronger than the atmospheric pressure on five million times stronger than the atmospheric pressure on Earth at sea level. Higher pressure holds molecules in liquids Earth at sea level. Higher pressure holds molecules in liquids close together and prevents them from spreading out to form close together and prevents them from spreading out to form vapor. vapor.

AtmosphereAtmosphere

The atmosphere of Uranus contains The atmosphere of Uranus contains hydrogen, helium, and small amounts of hydrogen, helium, and small amounts of methane.methane.

Methane absorbs red and orange light Methane absorbs red and orange light which gives Uranus its blue-green color. which gives Uranus its blue-green color.

Uranian RingsUranian Rings

Astronomers have identified ten rings of debris Astronomers have identified ten rings of debris encircling Uranus’s equator. encircling Uranus’s equator.

Many of these rings are made of ice and rock Many of these rings are made of ice and rock boulders about the size of large beach balls. boulders about the size of large beach balls.

Several observatories first detected five of the Several observatories first detected five of the ten rings in 1977.ten rings in 1977.

Starting from the innermost ring, these five rings Starting from the innermost ring, these five rings were called Alpha, Beta, Gamma, Delta, and were called Alpha, Beta, Gamma, Delta, and Epsilon.Epsilon.

Uranian RingsUranian Rings

In 1986 images taken by the Voyager 2 In 1986 images taken by the Voyager 2 spacecraft helped scientists discover five spacecraft helped scientists discover five more rings encircling Uranus.more rings encircling Uranus.

Magnetism on UranusMagnetism on Uranus

Which planet is most like Uranus?Which planet is most like Uranus?

Unique Facts about UranusUnique Facts about Uranus

Works CitedWorks Cited How much would you weigh on Uranus?How much would you weigh on Uranus?

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