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Astronomy b(1) final review

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In the center of every galaxy there is a ______________ _______ ______.

What element do stars in the main sequence fuse? ________________

SN_1572

A star explosion is called a ________________

Describe a type 1(A) supernova.

Galaxies and solar systems are created in nurseries called _______________

A black hole is so dense, even _______ can't escape.

Where on the H-R diagram is our star? In about 5 billion years, what will

happen to the sun?

How does the lifespan of stars relate to their mass? Why? How does this relate to the most common classification of star?

What are the two forces that keep a star in equilibrium?

A type 1A supernova gives off a precise amount of light. This is called

a ___________ __________.

After a star quits fuzing, and before the star explodes, it actually ______________.

What was left behind in the center of the crab nebula?

__________ _______

When a neutron star shoots beams of electromagnetic energy out of its poles,

is is called a __________ _________.

The last element a star fuses before it explodes is ________. Everything heavier than that is made in ______________

explosions.

Describe and draw doppler shift.

List the 4 main color classifications of stars.

A black hole that shoots beams of electromagnetic energy out of its poles is called a _____________. Draw what

this would look like.

What are neutron stars made of? _____________

Describe the three main pieces of evidence for the big bang.

Describe the two types of nebulae.