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Author Question: Explain what a standard candle is and how it could be used to determine a galaxy's distance. What ... (Read 122 times)

tuffie

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on: Jul 27, 2018
Explain what a standard candle is and how it could be used to determine a galaxy's distance.
 
  What will be an ideal response?

Question 2

The ________ tides have a large change from high to low, near new and full moons.
 
  Fill in the blank(s) with correct word


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leahm14

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Reply #1 on: Jul 27, 2018
Answer to Question 1

A standard candle is an object with a well-known luminosity, such as a Type I supernova. If we see a standard candle in a distant galaxy, we can measure its apparent brightness and use the inverse-square law to determine its distance.

Answer to Question 2

spring


tuffie

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Reply #2 on: Jul 27, 2018
Thanks


leahm14

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Reply #3 on: Jul 27, 2018
Welcome :)


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