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Spectrum of Comet C/2017 T2 (PanSTARRS)


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About this observation
Robin Leadbeater
Time of observation
18/01/2020 - 20:30
Comet C/2017 T2 (PanSTARRS)
Observing location
Three Hills Observatory Wigton Cumbria UK
Celestron C11 with focal reducer
ALPY 600 spectrograph
ATIK 428 camera
15x300 sec

A sky background subtracted low resolution spectrum image covering ~3700-7800 Angstrom showing sunlight scattered from the bright inner coma and emission bands from CN, C2, C3 in the outer coma.  (The faint spectrum above the coma is a field star which passed through the slit during the exposure). Processed spectra in the BAA spectroscopy database

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