Miscellaneous
This is how astronomers recognize regions in the night sky.
What are constellations?
Object whose gravity is so great that no light can escape it.
What is black hole?
Shell of cooler hydrogen above a star's core.
What is the radiative zone?
The shape is the result of gravitational pull of neighboring galaxies.
What are irregular galaxies?
The star becomes a red giant and then a red supergiant after this is almost gone.
What is hydrogen?
The universe began from one point a billion years ago.
What is the Big Bang Theory?
Explosion of a massive star.
What is supernova?
Orange-red layer above the photosphere.
What is the chromosphere?
A galaxy with arms radiating from its central bulge.
What are spiral galaxies?
This forms in red supergiant cores.
What is iron?
Nebula forms > Nebula expands > Outer shell blows off > Fusion begins
What is the major steps in star formation?
Measures distances between stars.
What is light-year??
Hot gas moves up toward the surface and cooler gas moves deeper into the interior.
What is the convection zone?
A group of stars that includes the Sun.
What is the Milky Way.
When a star collapses enough energy is released to explode.
What is a supernova?
Spreads light into different wavelengths.
What is spectroscope?
Used to measure the distance between Earth and Venus.
What is astronomical unit?
The apparent surface of a star.
What is photosphere?
True brightness of any object in space.
What is luminosity?
What is nuclear fusion?
Plots luminosity v. temperature of stars.
What is the Hertzsprung-Russell diagram?
Contains hundreds of thousands of stars.
What is a globular cluster?
This star is divided into six layers.
What is the Sun?
Location where fusion takes place.
What is the core?
Last stage of a star.
What is a neutron star or black hole?