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However, the 10.17ish from that paper seems to be just the contribution from the Red Giant star in the binary, and what we measure should be the combined flux from the entire binary system including the accretion disk. At the moment, from the AAVSO light curves, I would think a Vmag of 9.8 (fluctuating between 9.75 and 9.85 perhaps) should be about right. If we assume those values and no variability of the donor on short timescales (hours), if my math is right, it would mean that the accretion disk alone, without the red giant donar star, fluctuates between roughly 11.0 mag (V) and 11.3 mag (V) on short timescales, right?
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