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Comet C 2020 F3 (NEOWISE) spectrum


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About this observation
John Coffin
Time of observation
21/07/2020 - 01:26
Comet C 2020 F3 (NEOWISE)
Observing location
Alpy 600 spectrometer with guide and calibration modules
Celestron 8 Edge HD
x 0.7 reducer
AZ-EQ6 mount
Atik 460 EX camera
600 seconds x 6
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This spectrum was taken from the comet's halo. It was at an altitude of 10 deg, and the reference star (Merak) was at 20 deg. This means the relative intensities of the various emission lines will not be accurate. It shows Swan Bands due to diatomic carbon emissions, and also CN (cyanogen) and CH. 

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