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Focal length of 200" at Palomar?



 
 
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  #1  
Old October 20th 04, 01:40 PM
Ray
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Default Focal length of 200" at Palomar?

Just curious of what is the focal length of the 200" mirror at Palomar.

Thanks in advance,

Ray


  #2  
Old October 20th 04, 06:04 PM
Saul Levy
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As I remember the mirror is an f/5.5, so the focal length is 1100
inches.

Saul Levy


On Wed, 20 Oct 2004 12:40:10 GMT, "Ray"
wrote:

Just curious of what is the focal length of the 200" mirror at Palomar.

Thanks in advance,

Ray

  #3  
Old October 20th 04, 06:14 PM
Jonathan Silverlight
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In message K0tdd.7640$oU3.2640@trndny04, Ray
writes
Just curious of what is the focal length of the 200" mirror at Palomar.

Thanks in advance,


17,000mm (660 inches) according to
http://www.starizona.com/ccd/equipbasicsscale.htm. It's f/3.3
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