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How faint can we go? 

 Modifying the ALPY Spectrograph for fainter objects

 

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This poster, versions of which were presented in May 2014 at ASPEKT 2014 in Cologne, and a BAA Variable Star Section meeting in York describes the modification of my ALPY spectrograph with a 200 l/mm Grism and some early results from it. This was done to allow fainter objects to be recorded at lower resolution, for supernova identification for example. 

 

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