solar system Flashcards
Planet order
sun mercury venus earth mars jupiter saturn uranus neptune pluto
Terrestrial planets
Dense rocky planets like Earth, mars, merury, and venus
jovian planets
large gas planets like saturn, neptune, uranus, jupiter
What is eccentricity
How much a planet’s orbit diverts from being circular
LESS CIRCULAR = more eccentricity
eccentricity of a perfect circle
zero
retrograde motion
planet appears to move one way but moves another
planet closest to the sun
mercury, roman god messenger named hermes
Mercury atmosphere contents
potassium, oxygen, sodium, hyrdrogen, helium
5th planet from the sun
Jupiter the largest planet, named after king of gods
jupiters symbol
♃
how many moons does jupiter have
over 90
red planet?
mars: has iron oxide in the soil making it appear red
whats in mars atmosphere
95% carbon dioxide
3% nitrogen
1.6% argon
trace amounts of oxygen and H2O
how many moons on Mars
2 but they are most likely 2 loose astroids
how many moons does saturn
150 moons, largest is titan
warmest planet in the solar system
venus
Earth and Venus similarity
Significant volcanic activity
Venus symbol
♀, named after goddess of love
planet tilted on axis
uranus, the third largest planet
does uranus have rings
yes
uranus temp
-320, lowest average temp
how many moons does uranus have
27 moons
neptune gravity compared to others
Very weak gravity
planet farhtest from sun
neptune
diameter of neptune
30,599
which kind of planet is farthest from the sun
pluto
pluto moons?
5
symbol and name meaning
torch cross thing, named after god of underworld
kuiper belt
cold region of icy planets that houses pluto, past neptune
what is the oort cloud
icy rocks on the outer edge of solar system
