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public LocationGreenwich, UK
TimezoneEurope/London
Sunrise: 5:14 
Transit: 13:06 
Sunset: 20:58
sunny   (Daytime)   What's Visible Now?
All Constellations » Libra » 

Zubenelgenubi - α2 Librae (alpha2 Librae)

Below the horizon.  Rise: 15:07 | Tran: 19:40 | Set: 0:13
Alt: -14.95°   Az: 97.27°   Direction: East

Zubenelgenubi, also designated as α2 Librae (alpha2 Librae), is a variable and multiple sub-giant star of spectral class A3 in the constellation of Libra.

Zubenelgenubi visual magnitude is 2.75. Because of its brightness, Zubenelgenubi 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 Zubenelgenubi - α2 Librae (alpha2 Librae) star
DSS2 image of Zubenelgenubi. The red arrow shows the motion of Zubenelgenubi during the next 1000 years (-1.77 arcmin in Right Ascension and -1.12 arcmin in declination);

Celestial Coordinates

Apparent

14h 52m 14s
-16° 08’ 30”
17h 44m 29s
08h 36m 43s

J2000

14h 50m 52s
-16° 02’ 30”

Galactic Coordinates

340.33°
38.01°

Finder Chart

Finder chart Zubenelgenubi - α2 Librae (alpha2 Librae) star
Simplified finder chart for Zubenelgenubi - α2 Librae (alpha2 Librae).

Magnitude, Color, Spectral Class

2.75
Sub-giant

0.88
A3IV
8571K

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

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

Star System Properties

Zubenelgenubi 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 Zubenelgenubi double sysyem:

2.75
3.15
0.4
0 arcsec

Distance, Radial Speed, Proper Motion

Zubenelgenubi is distant 77.16 light years from the Sun and it is moving towards the Sun at the speed of 10 kilometers per second.

23.67
77.16
-10 km/s
-0.106 arcsec/y
-0.067"/y

Alternative Designations

Zubenelgenubi
α2 Librae
(alpha2 Librae)
SAO158840
SAO158840
Gl 564.1

Visibility from Your Location

Today's Zubenelgenubi - α2 Librae (alpha2 Librae) rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 106.1°
Max altitude: 22.4°
Azimuth: 253.9°