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Fig. 7

image

Phased AAVSO light curve of Mira in 19992013. The faint-maximum cycle of 1999 and the two recent cycles with bright maxima (2007 and 2011) are shown with blue, green, and cyan symbols, respectively. The dates of spectroscopic observations (Table 2) are marked with verical bars. For some dates, the corresponding bars appear twice in the graph, i.e. at ϕ and ϕ ± 1.

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