description Hirudo Overview
Hirudo was an obsolete constellation proposed by the English naturalist John Hill in Urania, published in 1754. It represented a leech, reflecting Hill's practice of adding small animal figures to the sky charts of his period. Like Aranea, the Long-Legged Spider, Hirudo did not enter the constellation system used by modern astronomers and is not among the 88 constellations recognized by the International Astronomical Union. [Former constellations](https://www.constellation-guide.com/constellations/former-constellations/)
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