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Author Question: How do astronomers know that the Crab Nebula is the remains of a supernova? What will be an ideal ... (Read 77 times)

madam-professor

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on: Jul 27, 2018
How do astronomers know that the Crab Nebula is the remains of a supernova?
 
  What will be an ideal response?

Question 2

The Milky Way can be seen only from the Northern Hemisphere.
 
  Indicate whether the statement is true or false


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peter

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

Both Chinese and Arab records show a guest star in the location that matches the position of the Crab Nebula. Rewinding the motion of the Crab Nebula brings it to the central object at the right time to match the observations of Chinese and Arab astronomers in 1054.

Answer to Question 2

FALSE


madam-professor

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Reply 2 on: Jul 27, 2018
YES! Correct, THANKS for helping me on my review

xiaomengxian

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Reply 3 on: Yesterday
Wow, this really help

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