Universe Universe Components Components

PLEASE LABEL THE PLEASE LABEL THE FOLLOWING ON YOUR FOLLOWING ON YOUR

NOTESNOTES STARS STARS GALAXIESGALAXIES COMETSCOMETS ASTERIODS ASTERIODS

STARSSTARS

Astronomer: Astronomer:

Person who Person who studies studies stars and stars and constellaticonstellations in the ons in the sky!sky!

BlueBlue stars stars (flames) burn (flames) burn the the hottest hottest and have a and have a high surface high surface temperature. temperature.

RedRed stars stars (flames) (flames) burn the burn the coolestcoolest..

Question: Which star is Question: Which star is hotter, Betelgeuse or Rigel?hotter, Betelgeuse or Rigel?

Betelgeuse Betelgeuse RigelRigel

In a Supernova In a Supernova Explosion Explosion a star a star collapses and collapses and

throws out layers throws out layers in spacein space. .

After a Supernova

Black Holes:Black Holes:

BLACK HOLES can be produced after the death of star.

Its so massive that light can not escape!

NebulasNebulas are are giant clouds of giant clouds of gas and dustgas and dust. .

Here stars are Here stars are bornborn

And can also And can also die.die.

Life Cycle of a STAR:Life Cycle of a STAR:

Absorption Spectrum:Absorption Spectrum:

Astronomers Astronomers use this to use this to determine determine both the both the temperature temperature and and composition composition of starsof stars. .

GalaxiesGalaxies

Spiral Spiral GalaxyGalaxy

A A spiral galaxyspiral galaxy has a has a bulge in the centerbulge in the center and and spiral armsspiral arms coming out of it.coming out of it.

Spiral GalaxySpiral Galaxy

QUESTION: What Galaxy do QUESTION: What Galaxy do we live in?we live in?

We live in the milky way, We live in the milky way, a spiral galaxy! a spiral galaxy!

Irregular Irregular GalaxyGalaxy

An An irregular galaxyirregular galaxy has a has a scatteredscattered look to it with look to it with no no distinct patterndistinct pattern..

Irregular GalaxyIrregular Galaxy

Elliptical Elliptical GalaxyGalaxy

An An elliptical galaxyelliptical galaxy has a very has a very bright bright centercenter and and very little very little dust or gasdust or gas around it. around it.

Elliptical GalaxyElliptical Galaxy

UNIVERSE (rising bread UNIVERSE (rising bread dough example):dough example):

The universe is The universe is like the rising like the rising

bread dough, its bread dough, its expanding. The expanding. The

raisins are raisins are galaxies. As the galaxies. As the

universe expands universe expands the galaxies the galaxies

move far apart.move far apart.

COMETSCOMETS

COMETCOMET

The ion tail The ion tail contains contains electrically electrically charged charged particles of particles of gas.gas.

ASTEROIDSASTEROIDS

ASTEROID:ASTEROID:

A ROCKY SMALL OBJECT THAT A ROCKY SMALL OBJECT THAT ORBITS THE SUN.ORBITS THE SUN.

ASTEROID BELT:ASTEROID BELT:

A BAND BETWEEN THE ORBITS OF A BAND BETWEEN THE ORBITS OF MARS AND JUPITER.MARS AND JUPITER.

Black hole animation:Black hole animation:

http://hubblesite.org/http://hubblesite.org/explore_astronomy/black_holes/explore_astronomy/black_holes/