HYDRUS
The Water Snake (Male)
(Hyi)

Generalities: it is a southern constellation with some stars of average brightness. It transits at midnight in November.
Origins and mythology: it corresponds to male Hydra, since it traces its form .
Stars: it shows two stars under magnitude three and a third star under magnitude 4. The brightest is beta, of magnitude 2.80, yellow color, about 20 light-years far.
Table of stars brighter than magnitude
3.5
| Star | Proper name | Magnitude | Spectrum | Colour | Distance (light-years) | Notes |
| Beta | 2.80 | G1 | yellow | 20 | ||
| Alpha | 2.86 | F0 | white-yellow | 36 | ||
| Gamma | 3.24 | M0 | red | 160 |
Other objects: it doesn't contain any objects of particular interest