Ancient Star Chart of the Hydra Constellation Glass Coaster

Star charts can be fascinating. This medieval constellation chart of Hydra might make you wonder what people were thinking as they gazed up at a night full of stars. Hydra is a large equatorial constellation with seven named stars: Alphard, Ashlesha, Felis, Lerna, Minchir, Ukdah, and Zhang. This design is surrounded by a dusty blue-green border. Whether you're giving a gift to an astronomy buff or you enjoy medieval maps of the sky, this design might be just the right touch.