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johnh

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  1. SPX350 F41.3, PGRFlea3, Baader RGB filters.  Imaged from Brisbane, Australia.

    This double is tricky at 2.72" separation, the 1st and 5th mag stars are not the only difference because colours of red/orange and blue make a pleasing contrast.  This is my best image of the two as the colour of the companion is obvious as seeing was good.  Orbital period 1200-2600 years and separation 503 AU.

    Regards, John.

    antares double-rgb-cs3.jpg

    • Like 24
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