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R Sct past very deep minimum

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Robin Leadbeater's picture
Robin Leadbeater
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Joined: 2012-10-08

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.

  http://www.spectro-aras.com/forum/viewtopic.php?f=5&t=646

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

Robin

AAVSO 49 Bay State Rd. Cambridge, MA 02138 aavso@aavso.org 617-354-0484