Spring–Summer · Largest
Hydra
The largest constellation in the sky by area, stretching across 100° of the celestial sphere. Despite its size, it has only one prominent star — Alphard, meaning "the solitary one" in Arabic.
Want to explore further?
Browse the Constellation Guide section of the StellarGuide — hundreds of astronomy cards, bilingual and free.
See the section →
Browse the Constellation Guide section of the StellarGuide — hundreds of astronomy cards, bilingual and free.