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.
Rowland grating
Hg spectrum
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: