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public LocationGreenwich, UK
Sunrise: 5:12 
Transit: 13:06 
Sunset: 20:59
sunny   (Daytime)   What's Visible Now?
All Constellations » Hydra » 

γ Hydrae (gamma Hydrae)

Below the horizon.  Rise: 14:24 | Tran: 18:12 | Set: 22:00
Alt: -61.06°   Az: 343.61°   Direction: North-North-West

γ Hydrae is a variable and double giant star of spectral class G8 in the constellation of Hydra.

γ Hydrae visual magnitude is 3. Because of its brightness, γ Hydrae is clearly visible to the naked eye when observed from locations with dark skies, and should be also quite easily visible from light polluted areas.

Image of γ Hydrae (gamma Hydrae) star
DSS2 image of γ Hydrae. The red arrow shows the motion of γ Hydrae during the next 10000 years (10.67 arcmin in Right Ascension and -7.50 arcmin in declination);

Celestial Coordinates


13h 20m 15s
-23° 18’ 00”
11h 25m 48s
00h 46m 03s


13h 18m 55s
-23° 10’ 18”

Galactic Coordinates


Finder Chart

Finder chart γ Hydrae (gamma Hydrae) star
Simplified finder chart for γ Hydrae (gamma Hydrae).

Magnitude, Color, Spectral Class



The red dot in the diagram below shows where γ Hydrae is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of γ Hydrae. Attribution: Richard Powell / CC BY-SA

Star System Properties

γ Hydrae is a visual double star which can be observed only with the help of very large telescopes. The table below shows key information about the γ Hydrae double sysyem:

138.4 arcsec

Distance, Radial Speed, Proper Motion

γ Hydrae is distant 132.04 light years from the Sun and it is moving towards the Sun at the speed of 5 kilometers per second.

-5 km/s
0.064 arcsec/y

Alternative Designations

γ Hydrae
(gamma Hydrae)

Visibility from Your Location

Today's γ Hydrae (gamma Hydrae) rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 113.3°
Max altitude: 15.2°
Azimuth: 246.7°