background of the flag of the Community of Madrid, Spain, may be the stars of the Plough asterism (or of Ursa Minor). The same can be said of the seven stars pictured in the bordure azure of the coat of arms of Madrid, capital of that country. See also Notes References Bibliography Further reading Ian Ridpath and Wil Tirion (2007). Stars and Planets Guide, Collins, London. . Princeton University Press, Princeton. . External links The Deep Photographic Guide to the Constellations: Ursa Major The clickable Ursa Major AAVSO: The Myths of Ursa Major The Origin of the Greek Constellations (paywalled) Star Tales – Ursa Major Warburg Institute Iconographic Database (medieval and early modern images of Ursa Major) Constellations Northern constellations Constellations listed by Ptolemy Heraldic charges