Either of two regular seven-pointed stars, drawn with the construction lines retained; a heptangle.
1890, Mary Everest Boole, Logic Taught by Love, Alfred Mudge & Son:page 15: The exercise may be varied by tracing the Heptagram, i. e., passing from one point to another of a regular Heptagon in this order — 1, 4, 7, 3, 6, 2, 5, 1.page 81: If the hand is stiff, it may be loosened and trained into tune with Nature's formative processes by the practice of drawing the Pentagram and Heptagram.
1995, Carl G. Liungman, Thought Signs: The Semiotics of Symbols: Western Idiograms, IOS Press, ISBN 90-5199-197-5, page 347:It was with the adoption and widespread use of the seven-day week throughout the Hellenistic world of mixed cultures that this heptagramweekday heptagram was created.
2009, John Barnes, Gems of Geometry, Springer, ISBN 978-3-642-05091-6, page 27:Note that there are two different heptagrams, one goes around twice and the other thrice; moreover, the configuration at the core of the 3-heptagram is in fact a 2-heptagram and the figure at the core of that is an ordinary heptagon.
