constellation Hydra
E511406
The constellation Hydra is the largest and longest of the 88 modern constellations, representing a water serpent and stretching across a vast region of the southern sky.
Observed surface forms (3)
| Surface form | Occurrences |
|---|---|
| Hydra | 0 |
| Alphard | 0 |
| Sigma Hydrids | 0 |
Statements (54)
| Predicate | Object |
|---|---|
| instanceOf |
IAU designated constellation
ⓘ
constellation ⓘ meteor shower ⓘ |
| abbreviation | Hya NERFINISHED ⓘ |
| apparentMagnitude | 1.98 ⓘ |
| areaSquareDegrees | 1303 ⓘ |
| associatedCulture | Greek mythology NERFINISHED ⓘ |
| associatedMythology | Lernaean Hydra NERFINISHED ⓘ |
| BayerDesignation | Alpha Hydrae NERFINISHED ⓘ |
| belongsTo | 88 modern constellations ⓘ |
| bestVisibleMonth | April ⓘ |
| borderedByConstellation |
Antlia
NERFINISHED
ⓘ
Cancer NERFINISHED ⓘ Canis Minor NERFINISHED ⓘ Centaurus NERFINISHED ⓘ Corvus NERFINISHED ⓘ Crater NERFINISHED ⓘ Leo NERFINISHED ⓘ Libra NERFINISHED ⓘ Monoceros NERFINISHED ⓘ Puppis NERFINISHED ⓘ Pyxis NERFINISHED ⓘ Sextans NERFINISHED ⓘ Virgo NERFINISHED ⓘ |
| brightestStar | Alphard NERFINISHED ⓘ |
| containsBrightStar | Alphard NERFINISHED ⓘ |
| containsDeepSkyObject |
Messier 48
NERFINISHED
ⓘ
Messier 68 NERFINISHED ⓘ Messier 83 NERFINISHED ⓘ |
| containsStar |
Beta Hydrae
NERFINISHED
ⓘ
Epsilon Hydrae NERFINISHED ⓘ Gamma Hydrae NERFINISHED ⓘ R Hydrae NERFINISHED ⓘ |
| containsVariableStar |
R Hydrae
NERFINISHED
ⓘ
U Hydrae NERFINISHED ⓘ |
| declinationRange | +06° to −35° ⓘ |
| equinox | J2000.0 ⓘ |
| firstCataloguedBy | Ptolemy NERFINISHED ⓘ |
| genitiveForm | Hydrae NERFINISHED ⓘ |
| hasMeteorShower | Sigma Hydrids NERFINISHED ⓘ |
| hemisphere | southern celestial hemisphere ⓘ |
| isInConstellation | Hydra NERFINISHED ⓘ |
| isLargestConstellation | true ⓘ |
| name | Hydra NERFINISHED ⓘ |
| numberOfBayerFlamsteedStars | 75 ⓘ |
| numberOfMainStars | 17 ⓘ |
| quadrant | SQ2 ⓘ |
| radiantIn | Hydra NERFINISHED ⓘ |
| rankByArea | 1 ⓘ |
| rightAscensionRange | 08h 09m to 15h 01m ⓘ |
| symbolism |
sea serpent
ⓘ
water serpent ⓘ |
| visibleBetweenLatitudes | +54° and −83° ⓘ |
| zodiacal | false ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.