Explanation on how the sun produces energy by nuclear fusion.
Explain how the sun produces energy by nuclear fusion.
Explanation of the factors that would make a star appear brighter.
When we look at stars in the sky we see a wide range of brightness. Explain the factors that would make one star appear brighter than another.
Compare the sun with other stars.
Compare the sun with other stars.
Understanding the different properties of a star in the upper and lower part of the main sequence.
Consider a star at the upper part of the main sequence (label it star A) and a star in the lower part of the main sequence (label it star B). Which is: a. Larger? b. More luminous? c. More massive? d. Hotter?
The difference between the life spans of low mass stars and high mass stars.
Compare the life spans of low mass stars and high mass stars and explain why they are different.
The possible effects of a dying Sun
What would an imaginary terrestrial observer see as the Sun runs out of hydrogen in the future? If life is confined to Earth when this happens, would life perish from heat or from cold? Explain.
The fate of stars after they burn out.
What kind of stars eventually become white dwarfs? What kind eventually become supernovae? What will be the ultimate fate of the sun? Why?
A comparison of our solar system with the Milky Way Galaxy.
Compare the solar system with the Milky Way Galaxy.
Describe the nature of the material between the stars, and how is it observed?
Describe the nature of the material between the stars, and how is it observed? **** Minimum 100 words - Cite all sources / urls *******
Why are O and B stars the brightest in open clusters?
Why are O and B stars the brightest in open clusters? Why are red giants the brightest stars in globular clusters?
