Keywords: Gemini et Cancer - Mercator.jpeg Gemini and Cancer 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 Gemini constellation Cancer constellation Canis Minor Maps by Gerardus Mercator |