Life of a StarStacia Deutsch and Rhody

Cohon Discover how stars are born. Find out why they die.

Introduction• Many stars use telescopes and

other tool to study them.• Scientist called astronomers

study stars and other things I the solar system.• Stars are found in the solar

system.

Spectral Classes• There are seven spectral classes.• The seven classes are class o, b,

a, f, g, and k• Cause EffectQuickly lose fuel put into

spectral classes

Nebulas• Stars are born inside of nebulas.• A big cloud with huge clumps of

dust.• When a nebula collapses a new

star is born to a galaxy.

Protostars• Nuclear fusion is key to a stars to

a stars birth.• Sometimes stars form in huge

clusters so its nebula is really big.• The protostar shoots off its gas

and jets through its protoplanetary disk.

Chp.2 Main Sequence of a Star• Some stars don’t actually

become a real star.• They become brown dwarfs.• A stars mass determines how the

star dies.

Eta Carinae• One of the most massive stars

found in the solar system today is eta carinae.• Scientist predict that that eta

carinae will only live one million years.• Eta carinae is highly unstable.

Parts of a star• The sun is just a medium sized

star.• The core is where the sun makes

its energy.• The corona is the collection of

gasses all around the sun.

Chp. 3 Death of a Star• A star enters its final stage of life

when it runs out of fuel.• A medium to small sized star

becomes a red giant before death.• A large star becomes a red

supergiant.

Red giants• Soon the sun the sun will

become a red giant and swallow the earth.• A red giant creates a planetary

nebula.• Its used up all its fuel and can no

longer produce nuclear fusion.

White dwarfs• White dwarfs are dead stars.• The emit very little light and are

hard to detect because they have no energy.• White dwarfs are so hot that

they still glow.