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    Re: Arcturus- what is the arc diameter from Earth?
    From: Brad Morris
    Date: 2015 Aug 7, 00:15 -0400

    Sin(0.013/3600)*5280*12
    Yields the number of inches at a distance of a mile.

    That answer is 0.0039" inches, whereas 1/16 of an inch is 0.0625"

    Call it 4 thousands of an inch at the distance of a mile.

    On Aug 6, 2015 4:52 PM, "Samuel L" <NoReply_SamuelL@fer3.com> wrote:
    >
    > Peter,
    >
    > Using your math skill can you give me a scale example of that size? That is, for example; "if Arcturus were 1 mile away it would appear to be 1/16" of an inch in diameter".
    >
    > What do you think?
    >
    > Thanks,
    >
    >
    > Sam
    >
    >  
    >
    >  
    >
    > Arturus is 36.7 light years (3.472 x 10^14 kilometers) from Earth and has a radius of 1.767 x 10^7 kilometers, which I work out to be a semidiameter of 0.013".
    >
    > View and reply to this message

       
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