earth science quizlet unit 12- the specific version, recomended one for studying

when was the oort cloud theorized in?

1950

what year was the kuiper belt discovered in?

1992

The Great Red Spot has been seen by Earthly observers for more than _ years.

300 years

Mercury is approximately _ the size of Earth.

38%

tempature on mercury during the day

450° C

jupiter is the _th brightest object in the sky

4th

mars is wind and dust stoms occur for ____

months

satilites (natural)

moons, variously sized objects orbiting the planets

In this early phase all the planets were the size of ____ and the composition of ____

neptune;jupiter

how long is jupiters day and year?

10 Earth hours long and its year 12 Earth years long

how far out does the oort cloud go till?

100,000 AU

jupiters size compared to earth

11 times the size of Earth

how many satilites (natural)(moons) are there

130 +

Pluto's orbit deviates the most from the plane of the ecliptic with an inclination of ____ degreese

17

Earth is _ AU from the Sun, while Mars is about _, pluto is about_

1;1.5;30-50 AU

how long is a day on mercury

2 months

jupiters core is probably about ____ degreese celcius

20,000° C

A day on Venus is longer than its year, taking ____ Earth days to rotate

243

the canyon on mars stretches how many miles long?

3,000

how many miles is the base of the largest mountain in the solar system?

300 miles

on mars at night, most areas cool to _ degreese celcius

-100° C.

tempature on mercury during the night

-180° C.

The ecliptic is inclined only ____ degreese

7

There are strong (200 mph) ____ on venus

winds

does mars have the same length of hours in a day?

yes mars is day does have the same length of hours in an earth day

does jupiter have rings?

yes, but they are very faint

on mars, no tempature rises higher than _ degreese

0 degreese celcius (mars)

the oort cloud (distance)

1,000 times the distance from the Sun to Pluto or roughly one light year

the kuiper belt contains _ small objects (at least)

70,000

what is venus is surface tempature?

700 degreese celcius

how many satilities does jupiter have?

79 satilities

How many planets are in our solar system?

8

mercurys year is how many earth days long?

88 earth days

Venus' surface pressure is _ times that of Earth's

90 times

how long is the distance between the sun and the earth?

93 million miles

venus size is _% of earth

95%

how far does the solar system reach out till? (rethorical question including a non-specific answer)

Actually...we don't really know where our solar system ends, and where interstellar space begins.

define: accretion

An accumulation of dust and gas into larger bodies such as stars, planets and moons

venus is the brightest object in the sky after the ____ and ____

sun and moon

The early proto-sun sent out shock-waves of energy, which were strong enough to blow the lighter elements including....

H, and HE

what is in the outer solar system? (upper case, first letter list)

Jupiter, Saturn, Uranus and Neptune

the inner planets

Mercury, Venus, Earth, Mars

jovian planets

One of four gas giants within our solar system: Jupiter, Saturn, Uranus, and Neptune. The term is in reference to the Roman god Jove, also known as "jupiter"

terrestrial planets

The four innermost planets of the solar system, resembling the earth in general physical and chemical properties.

which meteorites are belied to have origionated on mars ?

SNC

what is in the inner solar system?

Sun, Mercury, Venus, Earth and Mars

what do people think venus might of had in the padt

Venus probably once had large amounts of water like Earth but it all boiled away. Venus is now quite dry

what shape do mercury and pluto make while orbiting?

a circle

what is an inferrior planet

a planet inside of earths orbit

what is mars is moon phobos shaped like?

a potato, 26 km long by about 22 km across.

There are many small moons that probably started out as ____and were only later captured by a ____

asteroids;pluto

One of the best ways to discuss distance within the Solar System is through a special unit called the....

astronomical unit (AU)

venus is atmosphere is mostly composed of ____ ____

carbon dioxide

The ecliptic is inclined only 7 degrees from the plane of the....

sun's equator

what direction do all planets EXCEPT FOR: venus, uranus, and pluto orbit?

counter-clockwise

____the smaller of the two, is only about 15 km long by 12 km across.

deimos (answering the question which asks about dimensions)

what do the cores of gas giants become when getting closer to the center?

denser

what is the Kuiper Belt shaped like

disk-shaped

the planets orbits are.... (mostly)

ellipses

the solar system is mostly ____space

empty

The early proto-sun sent out shock-waves of ____

energy

what is the largest moon in the entire solar system?

ganymede

the sun is formed from a sprinning cloud of: ____ and ____

gas and dust

Jupiter radiates more ____ into space than it receives from the ____

heat;sun

what are the outer planets? (list) (lower case)

jupiter, saturn, uranus, neptune

_____ belt if an area beyond neptune

kuiper

saturn is the ____ dense of all the planets

least dense (saturn)

there is ____ gravity on mars

less gravity on mars

what is the pressure on mars?

less than 1%

a day on venus is ____ than its year

longer

where are jovian planets located?

main asteroid belt

which planets does the astroid belt orbit around?

mars and jupiter

Earth, its surface area is about the same as the land surface area of Earth

mars compared to earth in surface area

which planet in the solar system has the most creators

mercury

which 2 planets do not orbit in a ellipses?

mercury and pluto

does mercury have any moons?

mercury has no known moons

what is the order of the planets?

mercury, venus, earth, and mars, jupiter, saturn, uranus, neptune, and pluto

what i the largest mountain in the entire solar system

mons

venus rotates in what direction of the earth?

opposite

the oort cloud is said to have____ (amount of comets)

over a trillion comets

name mars is two moons

phobos and deimos

traditionally, what is the solar system divided into?

planets

mercurys atmosphere is always being ____

replenished

what are the outer planets accompanited by elaborating a system of ____ and ____

rings;moons

what are the outer planets composed of?

rock or other solid matter.

the surface on mars is litterly ____ away

rusting

terrestrial planets have the ____ structure

same

venus is known as the ____ planet

sister

Jupiter is very gradually ____ ____ due to the tidal drag produced by the Galilean satellites

slowing down

asteroids

small dense objects orbiting the Sun

comets

small icy objects with highly eccentric orbits

mars is ____ than earth

smaller (mars size)

the moon on mars, phobos is so small that gravity isn't large enough to mold the moon into a ____

sphere

what is the oort cloud?

spherical cloud of icy material surrounding the solar system

what is beyond kuipers belt?

the oort cloud

what is mars called?

the red planet (looks red)

thickness of mercurys atmosphere

thin

mars has a ____ atmosphere

thin (mars)

does venus have moons?

venus does not have any known moons

venus is surface is hotter than what planet?

venus is surface is hotter than mercury