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Uranus
Uranus
10
Astronomy
Undergraduate 1
12/05/2008

Additional Astronomy Flashcards

 


 

Cards

Term
Uranus Distance
Definition

-so far away, can’t really see it

-takes 84 earth years to orbit the sun

Term
Uranus Size
Definition

-4th most massive planet

Term
Uranus Atmosphere
Definition
Hydrogen atmosphere has traces of methane
Term
Uranus Clouds
Definition

-Clouds are towering and huge (size of Europe)

-has system of belts and zones

 

 

Term
Uranus Rotation
Definition

-Rotates every 17 hours and 14 minutes

Uranus’ rotation axis is inclined 98 degrees from a line perpendicular to its orbit

 

-one of three planets with retrograde motion because north pole points below planet (others are Venus and Pluto)

Outer layer composed of gaseous hydrogen and helium

Term
Uranus Temperature
Definition

-Temperature so cold that methane and water condense to form clouds of ice crystals

Term
Uranus Interior
Definition

Interior has three layers:

 

            --outer 30% of planet is liquid hydrogen and helium

 

            -- next 40% is highly compressed liquid water

 

            --inner 30% rocky core

 

-Water evidence comes from lack of ammonia which easily dissolves in water

Term
Uranus Magnetic Field
Definition

-Magnetic field is titled 59 degrees from axis of rotation, and does not pass through center of planet~

 

-because of this magnetosphere wobbles as planet rotates

Term
Uranus Rings
Definition

Uranus has 10 known rings discovered through occulation (blocking light of a more distant object, by something between it and us) –basically Uranus passed in front of a star and it was momentarily blocked allowing us to see rings existence

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