I’ve been making and blogging these birthday stars for well over a decade, and see no reason to stop any time soon. This one is made of four {7/3} heptagrams, shown in blue, with four {7/2} heptagrams shown in yellow. The area of intersection of these two types of star polygon is shown in green. This works to yield a 56-pointed star because (7)(4) + (7)(4) = 28 + 28 = 56.
RobertLovesPi.net 
Happy birthday! Thank you for sharing your love of shapes and geometry!
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can i use this in my website? would you mind giving the usage of this graphic, as the 56 pointed star has special signifance to me
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Yes, you may. It is not copyrighted.
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