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Basic astronomy help please (:

  • Thread starter blink_1992
  • Start date
  • #1
if anyone could help with either of these questions, it would be greatly appreciated, thank you (:

1) how long does a day on the moon last and why?
2) how many times larger does the earth look if you were on the moon,compared to seeing the moon from earth? (provide calculation)

thanks a lot!
(:
 

Answers and Replies

  • #2
HallsofIvy
Science Advisor
Homework Helper
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Have you done anything on this yourself? I entered "a day on the moon" into google and got the answer quickly. (It is about a "moonth"!) And it is probably in your text book.

As for the second question do you know the diameters of the moon and the earth? Do you know the distance from the earth to the moon? You could probably look those up in your text book or on google.

What would the circumference of a circle, with radius equal to the distance from the earth to the moon be? What part of that would the diameters of the earth and moon be? Do you see why that will give you your answer?
 
  • #3
Drakkith
Staff Emeritus
Science Advisor
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(It is about a "moonth"!)
If that's not a typo, then thats a terrible joke! And I love it!
 
  • #4
turbo
Gold Member
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If that's not a typo, then thats a terrible joke! And I love it!
Grrrrr! :biggrin:
 

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