OT: algorithm > Pixel X Y to RA Dec

From: John Burns (seesat@john.geek.nz)
Date: Thu Mar 19 2009 - 18:52:38 UTC

  • Next message: Leo Barhorst: "SAA"

    I've got some code in C from wcstools to convert xy coordinates in an  
    image (with supplied WCS data) to a J2000 Ra/Dec which I'm trying to  
    move to c#.
    
    The problem is that the actual algorithm is not well documented in it  
    and I'm having difficulty understanding how it all works.
    
    Does anyone know of a book or website which this is documented in  
    detail?  If not, I'll keep slaving over the C to try and understand it.
    
    John
    
    
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