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public LocationGreenwich, UK
Sunrise: 5:00 
Transit: 13:04 
Sunset: 21:07
sunny   (Daytime)   What's Visible Now?
All Constellations » Libra » 

θ Librae (theta Librae)

Below the horizon.  Rise: 16:49 | Tran: 21:18 | Set: 1:51
Alt: -55.30°   Az: 357.60°   Direction: North

θ Librae is a giant star of spectral class G8 in the constellation of Libra.

θ Librae visual magnitude is 4.15. Because of its moderate brightness, θ Librae 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.

θ Librae is situated close to the celestial equator, as such, it is at least partly visible from both hemispheres in certain times of the year.

Image of θ Librae (theta Librae) star
DSS2 image of θ Librae. The red arrow shows the motion of θ Librae during the next 1000 years (1.65 arcmin in Right Ascension and 2.22 arcmin in declination);

Celestial Coordinates


15h 55m 13s
-16° 48’ 01”
11h 54m 17s
03h 49m 30s


15h 53m 49s
-16° 43’ 45”

Galactic Coordinates


Finder Chart

Finder chart θ Librae (theta Librae) star
Simplified finder chart for θ Librae (theta Librae).

Magnitude, Color, Spectral Class



The red dot in the diagram below shows where θ Librae is situated in the Hertzsprung–Russell diagram.

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

Distance, Radial Speed, Proper Motion

θ Librae is distant 162.84 light years from the Sun and it is moving far from the Sun at the speed of 3 kilometers per second.

49.95 pc
162.84 ly
3 km/s
0.099 arcsec/y
0.133 "/y

Alternative Designations

θ Librae
(theta Librae)

Visibility from Your Location

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

Azimuth: 106.8°
Max altitude: 21.7°
Azimuth: 253.2°