Observation by Alun Halsey: C/2020 F3 (NEOWISE) spectrum

Had an attempt at capturing the spectrum of comet NEOWISE on the morning of the 11th July by holding the star analyser in front of the lens,being careful not to disturb focus whilst holding the grating (1.25" filter) as still as possible I run off this single 10 second exposure to capture this spectrum which clearly shows the Na D sodium emission. Must admit this was the best shot out of ten attempts to get it right :)

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