Hydrus constellation
Latin Hydrus, genitive Hydri, abbreviation Hyi
North up, east to the left, as you see the sky. The lines are a common figure; the stars are from the catalogue.
When can Hydrus be seen?
It stands highest around 10 pm in November. It can be seen from everywhere south of 10°N, and it never sets south of 28°S.
The brightest stars
| Star | Designation | Magnitude | Colour |
|---|---|---|---|
| – | β Hyi | 2.80 | yellow |
| – | α Hyi | 2.86 | white |
| – | γ Hyi | 3.24 | reddish |
| – | δ Hyi | 4.09 | white |
| – | ε Hyi | 4.11 | bluish |
| – | η2 Hyi | 4.69 | yellow |
| – | ν Hyi | 4.75 | orange |
| Koeia | ζ Hyi | 4.84 | white |
The smaller the number, the brighter: below 1 are the brightest stars of the sky, 4 is hard to see under a city sky. Greek letters after Johann Bayer (1603).