Hydra

The constellation of Hydra is both the largest and longest of all the constellations, spanning almost 7 hours of Right Ascension, and covering over 1300 square degrees. The attendant constellations of Corvus, Crater, and Sextans seem to ride on the back of Hydra as it winds across the sky. - There is a border around the image. Image size is correct. Many sizes available.