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Author Question: Polaris is 132 pc from Earth and has an absolute visual magnitude of 3.1 . What is the apparent ... (Read 32 times)

clippers!

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on: Jul 27, 2018
Polaris is 132 pc from Earth and has an absolute visual magnitude of 3.1 . What is the apparent visual magnitude of this star?
 
  a. 0.74 b. 1.18
  c. 0.5 d. 2.5

Question 2

Similar to our Sun, pulsars' rotations are believed to slow down because
 
  a. they are losing angular momentum into space via outward streaming particles.
  b. they are dragging companion stars around in their magnetic field.
  c. they are getting tired.
  d. of conservation of angular momentum.
  e. their mass is increasing.


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Sophiapenny

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

d

Answer to Question 2

a


clippers!

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

bulacsom

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Reply 3 on: Yesterday
Wow, this really help

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