Seven Stars and Seven Stones

[Amarie of the Vanyar]

Iargwath, in the heraldry page you linked it is said that they were five-pointed stars, and, even though, I like your explanation that this is because of the shape of the island of Númenor, in the index of RotK it is said that they were six-pointed [img]smilies/redface.gif[/img]

Star, as emblem: (...)
(2) Star of Elendil (...)
(4) Seven stars of Elendil and his captains (...)
(2) and (4) had six rays
Index; RotK