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    Re: Mars Saturn and Antares
    From: Bill B
    Date: 2016 Aug 29, 15:36 -0400

    On 8/28/2016 7:18 AM, Antoine Couëtte wrote:
    > And all three bodies are likely to form a triangle showing a 90° angle
    > at Mars quite shortly (at least when seen from Darwin, N.T. , Australia:
    > same for you Bill ?)
    >
    > BTW, when exactly will it  be a 90° angle ?
    
    By exactly right triangle do you mean Hc of Antares and Mars are
    identical to the 0.1 of a degree, and identical azimuths for Mars and
    Saturn, or some other configuration requiring spherical trig prowess I
    don't possess?
    
    

       
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