Hydra

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Constellations

Hydra

The Water Snake

Hydra is a constellation in the southern celestial hemisphere.

The constellation is also associated with the multi-headed monster Hydra in Greek muythology, that was killed by Hercules.

Hydra is one of the 48 original Ptolemaic Constellations.

It is the largest one of all constellations. It's brightest star is Alphard. Hydra in the Night Sky

This section describes the constellation as it is seen in the night sky.

For myth and star lore about Hydra, click here.

Star maps based on map provided by Sea & Sky

The stars of Hydra

Number Desig-
nation Name
Number Desig-
nation Name
1 M48 Messier 48 / NGC 2548
11 λ Lambda Hydrae
2 M68 Messier 68 / NGC 4590
12 μ Mu Hydrae
3 M83 Southern Pinwheel Galaxy
13 θ Theta_Hydrae
4 α Alphard
14 ι Ukdah
5 γ Gamma Hydrae
15 υ¹ Zhang
6 ζ Hydrobius
16 δ Lisan al Shudja
7 ν Nu_Hydrae
17 β Beta Hydrae
8 π Pi Hydrae
18 η Eta Hydrae
9 ε Ashlesha
19 σ Minchir
10 ξ Xi Hydrae
20 HD 85951 Felis

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