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Nebular Theory (Stars # # # (Average Star (Usese less fuel (dimmer, cooler…
Nebular Theory
Stars
#
#
#
Massive Star
Uses more fuel
brighter
hotter
Shorter life
Average Star
Fuses hydrogen
into helium
Turns into
a red giant
The outer layer
spreads out and cools
fuses helium into heavier
elements like carbon and oxygen
Then its a
white dwarf
Runs out of helium and trys to fuse
carbon. the star cant and the
gas expands away and leaves
behind a carbon core
Usese less fuel
dimmer
cooler
longer life
a solar system
There are also heavier
elements from the
remains of collapsed stars
a nebula is a cloud of
hydrogen and helium
left over from the big bang
gravity pulls dust together
and collapses the nebula
gas continues to accumulate
and material becomes more
dense and the pressure and
temperature increase.
When temperature is at the
center and becomes hot
enough, nuclear fusion begins
a star is formed
Dust clumps and planets form
outer planets
Uranus
atmosphere
average temps: -210 (-346)
has 27 moons
Methane makes it look blue/green
distance from the sun is 19.18 A.U.
rotates sideways
Saturn
atmosphere
average temps: -180 (-292)
has 53 confirmed moons
rings are dust rocks and ice
distance from the sun 9.54 A.U.
Neptune
atmosphere
average temps: -220 (-364)
has 13 confirmed moons
dark spots are storms
distance from the sun 30.06 A.U.
The four planets farthest
from the sun are the outer
planets. Much larger and made
of gases and liquids. (
gas
giants)
They all have rings
Jupiter
Atmosphere
Average temps.: -120 (-184)
Largest planet
size of 1300 earths
red spot is a hurricane
53 confirmed moons
distance from the sun is 5.2 A.U.
Inner planets
Shorter orbits around
the sun. And spin more slowly.
Made of cooled igneous.
Iron cores. None have rings
and are smaller
than the outer planets
Mercury
smallest
no moon
almost no atmosphere
closest to the sun
day temps: 427 C (801 F)
night temps: -183 C ( -297 F)
Distance from the sun is .39 A.U.
Venus
thick atmosphere
no moon
average temp: 460 (860)
surface pressure is 1348 p.s.i
distance from the sun is .72 A.U.
Earth
atmosphere
one moon
contains life
has liquid water
average temp: 20 ( 68)
distance from the sun is 1 A.U.
Mars
Thin atmosphere
has two moons
average temp: -23 (-9)
1/2 the size of earth
distance from the sun is 1.52 A.U.
It begins to rotate
it forms a disk shape
Galaxies
Nebulas
Dust
ice
rock
Gas
Helium
Hydrogen
solar systems
#
stars
Massive star
black hole
Average star