We use cookies to deliver essential features and to measure their performance. By using this site you accept our Privacy Policies.
Help keep this site free and ads-free: donate now!
public LocationGreenwich, UK
TimezoneEurope/London
Sunrise: 4:42 
Transit: 13:00 
Sunset: 21:17
sunny   (Daytime)   What's Visible Now?

λ Hydrae (lambda Hydrae)

Above the horizon.  Rise: 12:18 | Tran: 17:13 | Set: 22:07
Altitude: 13.9°   Azimuth: 228.4°   Direction: South-West

λ Hydrae is a multiple hypergiant star of spectral class K0 in the constellation of Hydra.

λ Hydrae visual magnitude is 3.61. Because of its moderate brightness, λ Hydrae is easily visible to the naked eye from locations with dark skies, while it might be barely visible, or not visible at all, from light-polluted skies.

Celestial coordinates and finder chart of λ Hydrae

Finder chart λ Hydrae (lambda Hydrae) star
Simplified finder chart for λ Hydrae (lambda Hydrae).

λ Hydrae is situated close to the celestial equator, as such, it is at least partly visible from both hemispheres in certain times of the year. Celestial coordinates for the J2000 equinox as well as galactic coordinates of λ Hydrae are provided in the following table:

10h 10m 35s
-12° 21’ 15”
253.01°
34.5°
Hydra
Image of λ Hydrae (lambda Hydrae) star
DSS2 image of λ Hydrae. The red arrow shows the motion of λ Hydrae during the next 1000 years (-3.37 arcmin in Right Ascension and -1.48 arcmin in declination);

Key facts about λ Hydrae

3.61
Hypergiant

and has a luminosity class of III corresponding to a hypergiant star.

0.88
K0III
4719K

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

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

λ Hydrae star system properties

λ 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 λ Hydrae double sysyem:

3.61
11.31
7.7
112.2 arcsec

Distance of λ Hydrae from the Sun and relative movement

λ Hydrae is distant 114.63 light years from the Sun and it is moving far from the Sun at the speed of 19 kilometers per second.

35.16 pc
114.63 ly
19 km/s
-0.202 arcsec/year
-0.089 arcsec/year

Alternative designations of λ Hydrae

λ Hydrae
(lambda Hydrae)
SAO155785
SAO155785

Visibility of λ Hydrae from your location

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

Azimuth: 102.4°
Max altitude: 26.2°
Azimuth: 257.6°