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Author Question: The amount by which you look into the past when you look at a distant galaxy, a duration equal to ... (Read 27 times)

karlynnae

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on: Jul 27, 2018
The amount by which you look into the past when you look at a distant galaxy, a duration equal to the distance to the galaxy in light-years, is referred to as the__________.
 
  A) look-back time
  B) sidereal period
  C) synodic period
  D) distance ladder

Question 2

A megaparsec (Mpc) is equal to _____.
 
  A) 3.3 thousand ly
  B) 3.3 million ly
  C) 3.3 billion ly
  D) 3.3 trillion ly


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triiciiaa

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

A

Answer to Question 2

B


karlynnae

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Reply 2 on: Jul 27, 2018
Great answer, keep it coming :)

essyface1

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Reply 3 on: Yesterday
:D TYSM

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