Hydra
Hya
Rang: #1
1303 kw.gr.
Hydra is the largest of the 88 modern constellations, measuring 1303 square degrees, and also the longest at over 100 degrees. Its southern end borders Libra and Centaurus and its northern end borders Cancer. It was included among the 48 constellations listed by the 2nd century astronomer Ptolemy.
IAU sterrenbeeldkaart met grenzen en hoofdsterren
Hydra
| Genitief | Hydrae |
| Symboliek | the Hydra |
| Rechte klimming | 10h 00m 00s |
| Declinatie | -20° 00' 00" |
| Oppervlakte | 1303 sq. deg. |
| Oppervlakterang | 1st |
| Helderste ster | Alphard (mag 1.98) |
Overzicht deepsky-objecten
33
Helderste sterren
1
Open clusters
2
Bolvormige clusters
31
Sterrenstelsels
0
Nevels
Helderste sterren
| Aanduiding | Naam | Schijnbare helderheid | Rechte klimming | Declinatie | Spectraaltype |
|---|
Bolvormige clusters
| Aanduiding | Naam | Schijnbare helderheid | Rechte klimming | Declinatie | Hoekgrootte |
|---|
Sterrenstelsels
| Aanduiding | Naam | Schijnbare helderheid | Rechte klimming | Declinatie | Type |
|---|