Keywords: Draco et Ursa Minor - Mercator.jpeg Draco and Ursa_Minor constellations from the Mercator celestial globe The Mercator Globes at Harvard Map Collection http //hcl harvard edu/mercatorglobes/ 1551 Gerard Mercator 1512-1594 PD-old-100 Mercator celestial globe Draco constellation Ursa Minor Maps by Gerardus Mercator |