Stars & Galaxies Questions.docx - Name Date Period...

This preview shows page 1 out of 1 page.

Name:__________________ Date:_______________ Period:____ Geophysical Science Mr. Fahmy Stars & Galaxies Questions 1. How old is the universe? How wide is the universe from one end to the other? Explain how you calculated the width of the universe. 2. What are the two main units of distance in astronomical studies? 3. What practice do astronomers apply to determine how far away stars are from earth? What critical facts do you need to calculate the distance to a nearby star? 4. Why does the position of the North Star, Polaris, appear fixed in the sky? 5. What is a light spectrometer? What does spectroscopic data tell you? 6. What is an element’s absorption/emission spectrum? How is an absorption/emission spectrum useful in identifying the composition of a star?
Image of page 1
You've reached the end of this preview.
  • Fall '17
  • Mr. Rosa, Alberto

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern