The only reason I thought occultation is because if it's only one short period of observation, and a red dwarf not orbiting the star passed between us
and it, it could cause a large dip in brightness. Especially if the dwarf has, say, a dusty accretion disc surrounding it.
It does seem possible that there could very well be a redshift dwarf we haven't yet charted in that direction though. They are apparently beyond
common by most models, and we have to look for them specifically to find them due to the low luminosity.
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