Noel has just processed a Sky 90/M25C image of an open cluster.  We had already imaged the same cluster a couple of years earlier with the Hyperstar 1 and SXV-H9C.  One very faint very red star of around magnitude 13 shows up as a bright orange magnitude 7 star in the latest data.  We have identified the star as a variable which may undergo mag 2 variations – but a 6 mag change is a bit steep by anyone’s standards!  We are looking into this a bit deeper and have sent the data to an expert at the BAA.  Watch this space.  New discovery?  Quite possibly 🙂

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