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sci.optics

Discussion relating to the science of op

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Message 11,293 of 12,750

Double-A to RichD

Re: galactic rotation

16 Apr 13 11:02:00

   d222543d   
   0eb0861c   
   XPost: sci.physics.relativity, alt.astronomy   
   From: double-a3@hush.com   
      
   On Apr 15, 9:45 pm, RichD  wrote:   
   > How do astronomers know our galaxy is rotating, how do   
   > they measure the velocity?   
   >   
   > And, how do they measure the rotational velocity of other galaxies?   
   >   
   > --   
   > Rich   
      
      
   By using their extremely sensitive instruments.   
      
   Double-A   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)

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