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Author Question: Which of the following is true about irregular galaxies? A) They were more common when the ... (Read 44 times)

Redwolflake15

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on: Jul 27, 2018
Which of the following is true about irregular galaxies?
 
  A) They were more common when the universe was younger.
  B) They have significant spheroidal component.
  C) They are composed solely of old stars.
  D) They have well defined spiral arms.
  E) They have reddish colors.

Question 2

Describe the changes in the Sun from beginning to end of a sunspot cycle.
 
  What will be an ideal response?


essyface1

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

A

Answer to Question 2

The first spots appear at higher latitudes, 30-40 degrees above and below the equator. More spots appear, typically closer to the equator until the numbers peak about six years into the cycle. The last spots appear closer and closer to the equator, while the first spots of the next cycle, with reversed polarity now, appear again at high latitudes.


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