H-R Diagram Student
... The Hertzsprung-Russell diagram is actually a graph that illustrates the relationship that exists between the average surface temperature of stars and their______________ ______________, which is how bright stars appear to be if they were all the same distance away. Rather than speak of the brightne ...
... The Hertzsprung-Russell diagram is actually a graph that illustrates the relationship that exists between the average surface temperature of stars and their______________ ______________, which is how bright stars appear to be if they were all the same distance away. Rather than speak of the brightne ...
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... 23. Using the Hertzsprung-Russell diagram for guidance, describe the temperature-luminosity relationship for each of the following types of stars. a. White dwarfs ...
... 23. Using the Hertzsprung-Russell diagram for guidance, describe the temperature-luminosity relationship for each of the following types of stars. a. White dwarfs ...
Brighter than the average star?
... with the words “Far out in the uncharted backwaters of the unfashionable end of the Western Spiral arm of the galaxy lies a small unregarded yellow sun.” There is a slight inaccuracy in that sentence. Rather than being relatively insignificant, our Sun is in fact one of the biggest and brightest sta ...
... with the words “Far out in the uncharted backwaters of the unfashionable end of the Western Spiral arm of the galaxy lies a small unregarded yellow sun.” There is a slight inaccuracy in that sentence. Rather than being relatively insignificant, our Sun is in fact one of the biggest and brightest sta ...
Document
... The Milky Way Galaxy is a giant disk of stars 160,000 light-years across and 1,000 light-years thick. The Sun is located at the edge of a spiral arm, 30,000 light-years from the center It takes 250 Million years for the Sun to complete one orbit ...
... The Milky Way Galaxy is a giant disk of stars 160,000 light-years across and 1,000 light-years thick. The Sun is located at the edge of a spiral arm, 30,000 light-years from the center It takes 250 Million years for the Sun to complete one orbit ...
Astronomy 1 Study Guide Key 16
... 7. A galaxy is a collection of stars. Our galaxy is called the Milky Way. 8. It has many solar systems with in its arms. At the center of our spiral galaxy is a black hole, so our galaxy is also called a quasar. Stars Be able to read an H-R diagram. ...
... 7. A galaxy is a collection of stars. Our galaxy is called the Milky Way. 8. It has many solar systems with in its arms. At the center of our spiral galaxy is a black hole, so our galaxy is also called a quasar. Stars Be able to read an H-R diagram. ...
Stars Notes
... Sirius is the brightest star in our sky. It is about 9 light-years away from Earth and has a magnitude of 1.4 ...
... Sirius is the brightest star in our sky. It is about 9 light-years away from Earth and has a magnitude of 1.4 ...
Due Date: Thursday, November 16, 2006
... 1. If nuclear fusion of hydrogen in the core of the Sun were to stop now, what would we see on the surface of the Sun tomorrow? Why? Will we be able to tell that hydrogen burning in the core has stopped? How? (20pt) (Hint: What particles that are generated by the fusion of hydrogen can escape from t ...
... 1. If nuclear fusion of hydrogen in the core of the Sun were to stop now, what would we see on the surface of the Sun tomorrow? Why? Will we be able to tell that hydrogen burning in the core has stopped? How? (20pt) (Hint: What particles that are generated by the fusion of hydrogen can escape from t ...
Chapter 28.3 Topic questions
... 11. Red Super Giant stars have surface temperatures that are cooler than our earth, so why do they have greater luminosity than the sun? 12. The H-R diagram also includes which stars that are near the end of their life, what are these stars called? 13. A star begins it life in a cloud of gas and dus ...
... 11. Red Super Giant stars have surface temperatures that are cooler than our earth, so why do they have greater luminosity than the sun? 12. The H-R diagram also includes which stars that are near the end of their life, what are these stars called? 13. A star begins it life in a cloud of gas and dus ...
Homework Problems for Quiz 1 – AY 5 – Spring 2013
... 12. If a red star and a blue star both have the same radius and both are the same distance from the Earth, which one is brighter in the sky? The blue star produces more energy per unit surface area than the red star based on Stephan’s Law. If the two stars have the same radius, they have the same su ...
... 12. If a red star and a blue star both have the same radius and both are the same distance from the Earth, which one is brighter in the sky? The blue star produces more energy per unit surface area than the red star based on Stephan’s Law. If the two stars have the same radius, they have the same su ...
Stellar Evolution
... We do not know that all stars, regardless of their size, eventually run out of fuel and collapse due to gravity Low Mass Stars – consume fuel at a slow rate, may remain on main-sequence for up to 100 billion years, end up collapsing into white dwarfs Medium Mass Stars – go into red-giant stage, foll ...
... We do not know that all stars, regardless of their size, eventually run out of fuel and collapse due to gravity Low Mass Stars – consume fuel at a slow rate, may remain on main-sequence for up to 100 billion years, end up collapsing into white dwarfs Medium Mass Stars – go into red-giant stage, foll ...
![constellations[1]](http://s1.studyres.com/store/data/008081352_2-f872c73597ccdde4cfed49c9b322d3b2-300x300.png)
Review Guide
... 6. What type of galaxy contains only old stars? 7. What type of galaxy contains only young stars? 8. Besides their shape what other characteristic distinguishes the different types of galaxies from each other? 9. Why do distant galaxies appear redder than they should? 10. What are 2 pieces of eviden ...
... 6. What type of galaxy contains only old stars? 7. What type of galaxy contains only young stars? 8. Besides their shape what other characteristic distinguishes the different types of galaxies from each other? 9. Why do distant galaxies appear redder than they should? 10. What are 2 pieces of eviden ...
Cassiopeia (constellation)
Cassiopeia is a constellation in the northern sky, named after the vain queen Cassiopeia in Greek mythology, who boasted about her unrivalled beauty. Cassiopeia was one of the 48 constellations listed by the 2nd-century Greek astronomer Ptolemy, and it remains one of the 88 modern constellations today. It is easily recognizable due to its distinctive 'M' shape when in upper culmination but in higher northern locations when near lower culminations in spring and summer it has a 'W' shape, formed by five bright stars. It is bordered by Andromeda to the south, Perseus to the southeast, and Cepheus to the north. It is opposite the Big Dipper.In northern locations above 34ºN latitude it is visible year-round and in the (sub)tropics it can be seen at its clearest from September to early November in its characteristic 'M' shape. Even in low southern latitudes below 25ºS is can be seen low in the North.