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   rec.arts.sf.science      Real and speculative aspects of SF scien      45,986 messages   

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   Message 45,592 of 45,986   
   Jaimie Vandenbergh to tenentelui@gmail.com   
   Re: IR vs. visible light in space: eletr   
   24 Nov 18 23:24:40   
   
   From: jaimie@sometimes.sessile.org   
      
   On Sat, 24 Nov 2018 15:01:45 -0800 (PST), lui wolff   
    wrote:   
      
   >When dealing with a visible light telescope, if the angular resolution can't   
   resolve the target size as 1 pixel, it's out of range, right?   
      
   Wrong. Pixels aren't one photon wide, they're not just lit or dark. They   
   will collect photons over time and that is integrated to show the   
   signal.   
      
   Sensitivity to different EM spectrum ranges is variable, depending on   
   our ability (and interest) in developing sensors. So there isn't a   
   universal equation for this part of your spreadsheet, it's very   
   dependent on technology. Sea Wasp (not sure if he watches here) might   
   have more info on this, it's his field.   
      
   	Cheers - Jaimie   
   --   
   "Now there sits a man with an open mind.  You can feel the draft from here."   
                                                        - Groucho Marx   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)   

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