Hydra

Overview

Hydra (Hydrae) — The Water Snake is one of the 88 modern constellations recognised by the International Astronomical Union.

Highlights

• ★The largest of the 88 constellations
• ★The open cluster M48 and the Southern Pinwheel Galaxy (M83)

Notable stars

71 catalogued stars in this encyclopedia.

• Alphardmag 1.99
• Gamma Hydraemag 2.99
• Nu Hydraemag 3.11
• Zeta Hydraemag 3.11
• Pi Hydraemag 3.25
• Ashleshamag 3.38
• Xi Hydraemag 3.54
• Lambda Hydraemag 3.61
• Mu Hydraemag 3.83
• Theta Hydraemag 3.89
• Ukdahmag 3.9
• HR 3314mag 3.91

Deep-sky objects

• M 48
• Southern Pinwheel Galaxy
• Jupiter's Ghost Nebula
• M 68
• NGC 3621
• NGC 3923
• NGC 3585
• NGC 5694

Neighbouring constellations

Knowledge connections

• Constellation ofAlphard
• Constellation ofGamma Hydrae
• Constellation ofNu Hydrae
• Constellation ofZeta Hydrae
• Constellation ofPi Hydrae
• Constellation ofAshlesha
• Constellation ofXi Hydrae
• Constellation ofLambda Hydrae
• Constellation ofMu Hydrae
• Constellation ofTheta Hydrae
• Constellation ofUkdah
• Constellation ofHR 3314
• Constellation ofZhang
• Constellation ofDelta Hydrae
• Constellation ofBeta Hydrae
• Constellation ofEta Hydrae
• Constellation of12 Hydrae
• Constellation ofRho Hydrae
• Constellation of58 Hydrae
• Constellation ofMinchir
• Constellation of32 Hydrae
• Constellation of31 Hydrae
• Constellation of40 Hydrae
• Constellation ofHR 3459

Sources

The primary and reference sources this topic draws on.

• IAUInternational Astronomical Union

  Official naming, definitions, constellation boundaries, and astronomical nomenclature.