<Tr> <Th> Type </Th> <Td> Regular star polygon </Td> </Tr> <Tr> <Th> Edges and vertices </Th> <Td> 5 </Td> </Tr> <Tr> <Th> Schläfli symbol </Th> <Td> (5 / 2) </Td> </Tr> <Tr> <Th> Coxeter diagram </Th> <Td> </Td> </Tr>

What does a 5 point star with a circle around it mean