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We present a direct image of the innermost companion to the red giant deltaAndromedae using the Stellar Double Coronagraph at the Palomar Observatory. Weuse a Markov chain Monte Carlo based algorithm to simultaneously reduce thedata and perform astrometry and photometry of the companion. We determine thatthe companion is most likely a main-sequence K-type star and is certainly notthe previously hypothesized white dwarf.

Resolving the delta Andromedae spectroscopic binary with direct imaging