Big Bang
This was created in the explosion which is known as the big bang.
What is the universe?
what galaxy do we live in?
The Milky Way
stars are born in these large gas clouds
What are nebulae?
Stars are classified using this diagram (page 4 of your reference table)
What is the HR Diagram?
whats is the correct order of these from smallest to largest: Milky Way Galaxy, Universe, Solar System
Solar System, Milky Way, Universe
a light year is a unit of
length
The three types of galaxies.
What are spiral, elliptical, and irregular galaxies?
This is what determines the life cycle path of a star.
What is its mass?
the hottest stars are what color?
blue
Astronomers use this to determine what elements are in stars
spectra
The cosmic microwave background is remnants of the first...
Light ever formed in the universe
slide 3
elliptical
What is the main difference between a red giant and the red supergiant besides their mass?
Red supergiants make heavier elements than red giants do, red supergiants die in a supernova
what is the relationship between temperature and luminosity of Main Sequence Stars?
as temp increases, so does luminosity
slide 5
C
Slides Question 1
away from earth
what is at the center of almost every galaxy?
supermassive blackhole
this gas cloud is left behind after a low mass star has turned into a white dwarf
planetary nebula
Why is it that the very cool, supergiant, distant star Betelgeuse has such a high apparent magnitude?
Its huge, so it is brighter
the lower the frequency the ____________ the wavelength
longer
Redshift of distant galaxies and the cosmic microwave background
irregular
Massive stars in their red supergiant stage can make up to this element
Iron (Fe)
How much brighter is the star Rigel than the Sun?
100,000x
slide 4
A