Hg spectrum of a 15 foot Rowland grating of 1895

Physikfan, Fri Mar 15 2019, 05:13PM

The spectrum is a Hg spectrum of a 15 foot Rowland grating of 1895, photographed with a Nikon D3, f = 200 mm.


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Rowland grating


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Hg spectrum


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Spectrum calculated from the photo
Re: Hg spectrum of a 15 foot Rowland grating of 1895
Physikfan, Tue Mar 19 2019, 05:42PM

Another picture of this Rowland grating:

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