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Loading contentThe constellations covering the greatest area of sky, led by Hydra.
| Constellation | Abbr | Hemisphere | Area | Rank | Season |
|---|---|---|---|---|---|
| HydraThe Water Snake | Hya | Equatorial | 1,303 deg² | 1 | — |
| VirgoThe Maiden | Vir | Equatorial | 1,294 deg² | 2 | Spring |
| Ursa MajorThe Great Bear | UMa | Northern | 1,280 deg² | 3 | Spring |
| CetusThe Sea Monster / Whale | Cet | Equatorial | 1,231 deg² | 4 | Autumn |
| HerculesThe Hero (Heracles) | Her | Northern | 1,225 deg² | 5 | Summer |
| EridanusThe River | Eri | Southern | 1,138 deg² | 6 | — |
| PegasusThe Winged Horse | Peg | Northern | 1,121 deg² | 7 | Autumn |
| DracoThe Dragon | Dra | Northern | 1,083 deg² | 8 | — |
| CentaurusThe Centaur | Cen | Southern | 1,060 deg² | 9 | — |
| AquariusThe Water Bearer | Aqr | Equatorial | 980 deg² | 10 | Autumn |
| OphiuchusThe Serpent Bearer | Oph | Equatorial | 948 deg² | 11 | Summer |
| LeoThe Lion | Leo | Northern | 947 deg² | 12 | Spring |
| BoötesThe Herdsman | Boo | Northern | 907 deg² | 13 | Spring |
| PiscesThe Fishes | Psc | Northern | 889 deg² | 14 | Autumn |
| SagittariusThe Archer | Sgr | Southern | 867 deg² | 15 | Summer |
| CygnusThe Swan | Cyg | Northern | 804 deg² | 16 | Summer |
| TaurusThe Bull | Tau | Northern | 797 deg² | 17 | Winter |
| CamelopardalisThe Giraffe | Cam | Northern | 757 deg² | 18 | — |
| AndromedaThe Chained Princess | And | Northern | 722 deg² | 19 | Autumn |
| PuppisThe Stern (of Argo Navis) | Pup | Southern | 673 deg² | 20 | — |