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Published online by Cambridge University Press: 14 August 2015
The UV energy curve of Canopus in the 2400–4000 Å wavelength range has been obtained from spectrograms having a dispersion of 183 Å mm−1. This curve is in good agreement with previous observations and with a model atmosphere. The equivalent width of Mg11 2795 Å, 2802 Å is found to be 22 Å.