Observe hydra in the sky in real time in 3D. You will also be able to see the planets of the solar system, the Sun and the Moon. Navigate freely in the sky by clicking on the keys to move forward or backward in time. Discover its position and display the azimuth grid to find your way in the sky. The « screen » feature allows you to take a picture of the sky and download the image.

LUNDI 24 AOÛT 2026 À 02:41 UTC+2

Observation of the Hydra constellation

Visualize in real time the position of the Hydra constellation in the sky.

General presentation

Hydra is the largest of the 88 modern constellations. Visible mainly in spring, it extends over a huge portion of the sky and crosses several famous constellations such as Leo, Virgo and Corvus.

Shape of the Hydra constellation

The constellation of Hydra has the shape of a huge water snake. Its stars draw a very long sinuous line crossing the sky, with a well identifiable head composed of several grouped stars and a body that winds on more than one hundred degrees.

Stars of the Hydra constellation

StarMagnitudeDistanceEquatorial position J2000Current Equatorial PositionCurrent Horizontal Position at MarseilleLink
Alphard1.98180 light yearsRight ascension :
9ʰ27ᵐ35.243ˢ
Declination : -8°39'35.243″
Right ascension :
9ʰ28ᵐ53.1383405768ˢ
Declination :
-8°46′22.9937639535″
Azimut :
-139.3024520909717°
Altitude :
-48.799567302240376°
Beta Hydrae4.67310 light yearsRight ascension :
11ʰ52ᵐ54.521ˢ
Declination : -33°54'54.521″
Right ascension :
11ʰ54ᵐ14.6594503352ˢ
Declination :
-34°3′27.4384932689″
Azimut :
134.77029481390835°
Altitude :
-77.62756671424832°
Gamma Hydrae3133.8 light yearsRight ascension :
13ʰ18ᵐ55.297ˢ
Declination : -23°10'55.297″
Right ascension :
13ʰ20ᵐ21.8779847985ˢ
Declination :
-23°18′43.0306862526″
Azimut :
116.69226880125102°
Altitude :
-56.8809349156217°
Delta Hydrae4.131162 light yearsRight ascension :
8ʰ37ᵐ39.3697ˢ
Declination : 5°42'39.3697″
Right ascension :
8ʰ39ᵐ3.4922005229ˢ
Declination :
5°36′41.7077984688″
Azimut :
-134.61201723178684°
Altitude :
-30.134080723178165°
Epsilon Hydrae3.38129 light yearsRight ascension :
8ʰ46ᵐ46.512ˢ
Declination : 6°25'46.512″
Right ascension :
8ʰ48ᵐ10.8001848683ˢ
Declination :
6°19′15.094078311″
Azimut :
-137.29449421219266°
Altitude :
-30.677344975793975°
Zeta Hydrae3.1167 light yearsRight ascension :
8ʰ55ᵐ23.626ˢ
Declination : 5°56'23.626″
Right ascension :
8ʰ56ᵐ47.6305004504ˢ
Declination :
5°50′39.9935766979″
Azimut :
-139.21335840004855°
Altitude :
-32.13696715624771°
Eta Hydrae4.27590 light yearsRight ascension :
8ʰ43ᵐ13.475ˢ
Declination : 3°23'13.475″
Right ascension :
8ʰ44ᵐ36.4358964177ˢ
Declination :
3°18′14.8945071505″
Azimut :
-134.5909098415068°
Altitude :
-32.824175129399904°
Theta Hydrae3.88113 light yearsRight ascension :
9ʰ14ᵐ21.86007ˢ
Declination : 2°18'21.86007″
Right ascension :
9ʰ15ᵐ43.5604075031ˢ
Declination :
2°12′22.3276593908″
Azimut :
-142.26897797227286°
Altitude :
-37.544639588686834°
Iota Hydrae3.91263 light yearsRight ascension :
9ʰ39ᵐ51.36145ˢ
Declination : -1°8'51.36145″
Right ascension :
9ʰ41ᵐ12.0970521293ˢ
Declination :
-1°15′42.3011478163″
Azimut :
-147.98479934571654°
Altitude :
-43.35088411134859°
Lambda Hydrae3.61113 light yearsRight ascension :
10ʰ10ᵐ35.27667ˢ
Declination : -12°21'35.27667″
Right ascension :
10ʰ11ᵐ52.631795907ˢ
Declination :
-12°29′7.9997192106″
Azimut :
-152.67107778319655°
Altitude :
-56.57495858485445°
Mu Hydrae3.81234 light yearsRight ascension :
10ʰ26ᵐ5.4263ˢ
Declination : -16°50'5.4263″
Right ascension :
10ʰ27ᵐ22.0447028213ˢ
Declination :
-16°58′18.6229125485″
Azimut :
-156.79918711928346°
Altitude :
-62.02811253727648°
Nu Hydrae3.11144 light yearsRight ascension :
10ʰ49ᵐ37.489ˢ
Declination : -16°11'37.489″
Right ascension :
10ʰ50ᵐ55.8070903284ˢ
Declination :
-16°19′59.4606873621″
Azimut :
-168.97747748716122°
Altitude :
-62.668515090453674°
Xi Hydrae3.54129.6 light yearsRight ascension :
11ʰ33ᵐ0.115ˢ
Declination : -31°51'0.115″
Right ascension :
11ʰ34ᵐ18.3014628137ˢ
Declination :
-32°0′25.1267788522″
Azimut :
156.8110399259283°
Altitude :
-77.87959227622336°
Pi Hydrae3.28101 light yearsRight ascension :
14ʰ6ᵐ22.297ˢ
Declination : -26°40'22.297″
Right ascension :
14ʰ7ᵐ53.1737913207ˢ
Declination :
-26°48′37.7987300763″
Azimut :
100.24875339543657°
Altitude :
-50.95512989215071°
Upsilon1 Hydrae4.12264 light yearsRight ascension :
9ʰ51ᵐ28.694ˢ
Declination : -14°50'28.694″
Right ascension :
9ʰ52ᵐ44.7127048423ˢ
Declination :
-14°58′12.0063014741″
Azimut :
-143.07607683797207°
Altitude :
-57.00401536079947°
Sigma Hydrae4.44370 light yearsRight ascension :
8ʰ38ᵐ45.437ˢ
Declination : 3°20'45.437″
Right ascension :
8ʰ40ᵐ8.3791112242ˢ
Declination :
3°14′56.9467666684″
Azimut :
-133.43016277365498°
Altitude :
-32.28635237976644°