Stars
The birthplace of stars
Stellar Nebulae
2 possible outcomes of a "supernova"
Black hole & neutron star
As our sun ages the amount of this element will increase
helium
The portion of a star between the core and the outer layer and corona is
radiation zone
Stars are classified using these two criteria
temperature and luminosity
This is a massive cloud of gas and dust from which a star may form via gravity
nebula
This does not affect the apparent brightness of a star
How old the star is
The Milky Way is a ___________ galaxy (what type)
spiral
Patterns of stars in the night sky are called __________________
constellations
This varies with the position from which a star is observed
apparent brightness
Galaxies that are not spiral or elliptical in shape are called this
Irregular galaxies
When stars that are about 4 times large than our own die they will become one of these
neutron stars
This class of star is likely to spend the shortest amount of time in main sequence
A large white or blue star (burns hotter and consumes hydrogen faster)
When massive stars run out of fuel and succumb to their own gravity, they become on of these
supernovas
A stream of electrically charged particles sent into space by the sun
Solar wind
Name the three types of large galaxies.
spiral, elliptical, and irregular
Stars spend 90% of their lives in this stage
Main sequence
True or False: The smaller the star, the shorter it normally lives.
Stars that are the same temperature as the Sun are what color?
yellow
These are the most common galaxies in the universe.
Dwarf galaxies
The ____________________________ states that the universe probably began about 13.7 billion years ago with an enormous explosion.
Big Bang Theory