Stages of a star
The stage our sun is in.
What is a main sequence star?
(100 points per correct layer)
These are all the main layers of a star.
What is a core, radiative zone, convective zone, a photosphere, a chromosphere and a corona?
This is the part of the electromagnetic spectrum that people can see with the naked eye.
What is visible light?
The features of stars that are plotted on the HR diagram.
What are Luminosity and Temperature?
This is the most commonly talked about way for a supernova to occur.
What is a collapsing star?
This is the stage our sun is in.
What is a main sequence star?
This is the layer that convection happens in.
What is the convective zone?
This at the center of the electromagnetic spectrum.
What is visible light?
The one of the following statements that does not accurately describe the HR diagram.
What are cool stars located on the left side of the diagram (D)?
Supernovae come from the following things (200 points per thing).
What are collapsing stars and white dwarfs above The Chandrasekhar limit.
This is what our sun will become.
What is a white dwarf?
This is the layer you see when you look at the sun.
What is the photosphere?
(300 per correct percentage)
Visible light represents roughly this percentage of the energy Earth receives from the Sun.
Infrared represents roughly this percentage of the energy Earth receives from the Sun.
Ultraviolet radiation represents roughly this percentage of the energy Earth receives from the Sun.
What is 47% of the energy Earth receives from the Sun?
What is 51% of the energy Earth receives from the Sun?
What is 2% of the energy Earth receives from the Sun?
This is the band on the HR-Diagram that represents the area where most stars live their life.
What is the diagonal band that runs from the upper-left to the lower-right?
This is what happens when a white dwarf exceeds The Chandrasekhar limit.
What is nuclear fusion?
What is a supernova?
(300 points for each correct answer)
This is the largest star.
This is the phase that the largest star is in.
What is a Stephenson 2–18?
What is a red supergiant?
This is what we see around the moon during a solar eclipse.
What is the corona?
This is the reason for calling the electromagnetic spectrum 'the electromagnetic spectrum'.
What is the electromagnetic dynamo?
What consists of electric and magnetic fields?
This is the description of a star located at the top left corner of an HR diagram.
What is bright and hot?
A supernova explosion about 20 parsecs away likely caused this mass extinction.
What is the end-devonian mass extinction?
The minimum size a star needs in order to become a black hole at the end of it's life.
What is at around 2 or 3 solar masses?
This is the only layer of a star left after the star becomes a white dwarf.
What is the core?
(500 points per correct answer)
This is the wavelength of gamma rays.
This is the wavelength of radio waves.
What is 8.9 x 10-12 meters?
What is 3.57 x 102 meters?
These two people made the HR diagram.
Who were Ejnar Hertzsprung and Henry Norris Russell?
This is the main evidence we have for a supernova hitting Earth.
What are layers of radioactive iron atoms (iron-60, or 60Fe)?