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Lecture 11 Uranus and Neptune
cambridge lang
22
Astronomy
Undergraduate 1
10/26/2009

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Cards

Term
NEPTUNE size
Definition
4X earth
Term
URANUS size
Definition
4X earth
Term
NEPTUNE atmosphere
Definition
methane, stormy
Term
URANUS atmosphere
Definition
methane, quiet
Term
URANUS friends
Definition
rings
icy, gray, dense moons heated by radioactive
cratered, fractured, icy volcanic satellites
Miranda
Term
NEPTUNE friends
Definition
rings
triton (moon)
Term
NEPTUNE magnetism
Definition
large tilt differnece between rotatioal axis + magnetic axis

generated from conducting interior water
Term
URANUS magnetism
Definition
large tilt differnece between rotatioal axis + magnetic axis

generated frm conducting interior water
Term
NEPTUNE heat radiated
Definition
2.7 X as much as from sun
Term
URANUS heat radiated
Definition
equal to amount received
Term
URANUS rotational axis
Definition
tipped on its side,on orbital plane
Term
NEPTUNE orbital plane
Definition
not tipped on side
Term
URANUS interior makeup
Definition
melted ice: ammonia, methane, water
Term
NEPTUNE interior makeup
Definition
melted ice water, ammonia, methane
Term
NEPTUNE CORE
Definition
small rocky, no metallic hydrogen
Term
URANUS core
Definition
small, rocky, no metallic hydrogen
Term
what element is not present on uranus and neptune and why
Definition
hydgrogen too dispersed to collect around them when they formed
Term
URANUS rings
Definition
weblike, narrow, spaced out, dust between
created long after formation
discovered via stellar cocultation
dark (methane ice)
nearby moons gravity effects rings
Term
NEPTUNE rings
Definition
weblike, narrow, spaced out, dust between
created long after formation
stellar occultation no work cause clumpy from moon gravity
Term
miranda
Definition
uranus' satellite
shattered +reassembled
Term
triton
Definition
neptune's satellite
highly inclined orbit
retrograde rotation to planet's orbit
same size as pluto
frozen nitrogen lakes + icy volcanoes
slowly moving towards neptune
Term
which planet rotates opposite other planets
Definition
uranus
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