The Life Cycle of Stars

This is the death of a star (supernova) viewed by Tycho 400 years ago it was so bright you could see it with the naked eye

The Life Cycle of Stars

Nebula

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The Life Cycle of Stars

Nebula

Main Sequence Star

Red Giant

White Dwarf

Supernova

Neutron Star

Black Hole

Nebula

All stars begin as a ball of gas & Dust in space

Venus and the International Space Station crossing the sun.

Main Sequence Star

Has a Temp. Near 5,000 -6,000 C

Nuclear fusion occurs at the core converting Hydrogen to Helium.A star’s longest stage.

The stage of our SUN

The stars expands to 10 – 100 times its original size

The star has used all of its hydrogen fuel. The center shrinks.

Red Giant

White Dwarf

These are small hot stars near the end of their life.

Has a Temp. Near 10,000 C

Left over centers of old stars remain at this stage.

Supernova

This is the death of a large star by explosion

Generates a HUGE amount of light, brighter than a whole Galaxy, and may be seen with naked eye.

Neutron Star

The materials are squeezed together so hard by gravity electrons and protons become neutrons.

Black Hole

Left over from a supernova and very massive

So massive light can not escape. The mass of 3 suns and about 6 miles across