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R Sct past very deep minimum

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Robin Leadbeater
R Sct past very deep minimum

Unfortunately I did not pick up on this very deep (record breaking?) minimum of R Sct until it was well on the rise again and spectrum at  ~1A resolution (LHIRES III with 1200 l/mm grating) shows absorption lines once more where there was most likely a miriad of chromospheric emission lines at minimum.

This star should be an interesting target at any resolution with its dramatic change from G to M spectral type


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