heptagram
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Heptagram — A heptagram or septegram is a seven pointed star drawn with seven straight strokes. Geometry In general, a heptagram is any self intersecting heptagon (7 sided polygon).There are two regular heptagrams: * {7/2} heptagram * {7/3} heptagram This is … Wikipedia
Star (symbol) — The star (★), as an ideograph, most commonly represents the astronomical star for which it is named.Emblematic use*In heraldry, the star is the ensign of knightly rank, and every order of knighthood incorporates this symbol in some way. It has… … Wikipedia
Heptagon — In geometry, a heptagon is a polygon with seven sides and seven angles. In a regular heptagon, in which all sides and all angles are equal, the sides meet at an angle of 5π/7 radians, 128.5714286 degrees. Its Schläfli symbol is {7}. The area of a … Wikipedia
Days of the week — The names of the days of the week in various world languages can be classified as either numerical or planetary; however in either case the names of one or more days may have been changed for religious or secular reasons. For instance Sunday is… … Wikipedia
Heptagramme — Un heptagramme est une étoile à sept branches dessinée sur la base de sept droites. L heptagramme est une stellation de l heptagone. Sommaire 1 Construction géométrique 2 L heptagramme en tant que symbole 2.1 … Wikipédia en Français
Saturday — For other uses, see Saturday (disambiguation). Saturnus, Caravaggio, 16th c. Saturday ( … Wikipedia
Tuesday — For other uses, see Tuesday (disambiguation). The god Týr or Tiw, identified with Mars, after whom Tuesday is named. Tuesday ( … Wikipedia
Stellation — is a process of constructing new polygons (in two dimensions), new polyhedra in three dimensions, or, in general, new polytopes in n dimensions. The process consists of extending elements such as edges or face planes, usually in a symmetrical way … Wikipedia
Pentagram — For other uses, see Pentagram (disambiguation). Regular pentagram A pentagram Type Star polygon Edges and vertices 5 Schläfli symbol {5/2} … Wikipedia
Heptagrammic prism (7/3) — Infobox Polyhedron with vertfig Polyhedron Type=Uniform polyhedron Face List=2 Heptagrams 7 squares Edge Count=21 Vertex Count=14 Wythoff Symbol=2 7/3 2 Symmetry Group= D7h Vertex List=7/3.4.4 Dual=Heptagrammic bipyramid Property List=nonconvex… … Wikipedia
