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A Complete Guide to the Solar System and the Night Sky
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public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
north SunriseRise: 7:54  
clear_day Transit: 11:51  
SunsetSet: 15:49 south
sunny DaytimeWhat's Visible Now?
All Constellations » Libra » 

ζ3 Librae (zeta3 Librae)

Altitude: 15.6°   Azimuth: 214.2°   Direction: South-West

ζ3 Librae is a giant star in the constellation of Libra.

ζ3 Librae visual magnitude is 5.82. Because of its reltive faintness, ζ3 Librae should be visible only from locations with dark skyes, while it is not visible at all from skyes affected by light pollution.

The table below summarizes the key facts about ζ3 Librae:


ζ3 Librae (zeta3 Librae) is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 15.6°
Azimuth: 214.2°
Direction: South-West

Celestial coordinates and finder chart of ζ3 Librae

ζ3 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. Celestial coordinates for the J2000 equinox as well as galactic coordinates of ζ3 Librae are provided in the following table:

15h 30m 40s
-16° 36’ 33”

The simplified sky map below shows the position of ζ3 Librae in the sky:

Finder chart ζ3 Librae (zeta3 Librae) star
Simplified finder chart for ζ3 Librae (zeta3 Librae).

Visibility of ζ3 Librae from your location

Location: Greenwich, United Kingdom edit_location_alt
Latitude: 51° 28’ 47” N
Longitude: 0° 00’ 00” E
Timezone: Europe/London

Today's ζ3 Librae (zeta3 Librae) rise, transit and set times from Greenwich, United Kingdom edit_location_alt are the following (all times relative to the local timezone Europe/London):

Azimuth: 106.6°
Max altitude: 21.9°
Azimuth: 253.4°

Digitized Sky Survey image of ζ3 Librae

The image below is a photograph of ζ3 Librae from the Digitized Sky Survey 2 (DSS2 - see the credits section) taken in the red channel. The area of sky represented in the image is 0.5x0.5 degrees (30x30 arcmins). The proper motion of ζ3 Librae is 0.018 arcsec per year in Right Ascension and 0.001 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of ζ3 Librae (zeta3 Librae) star
DSS2 image of ζ3 Librae. The red arrow shows the motion of ζ3 Librae during the next 10000 years (3.00 arcmin in Right Ascension and 0.17 arcmin in declination);

Distance of ζ3 Librae from the Sun and relative movement

ζ3 Librae is distant 564.01 light years from the Sun and it is moving towards the Sun at the speed of 2 kilometers per second.

173.01 pc
564.01 ly
-2 km/s
0.018 arcsec/year
0.001 arcsec/year

Spectral properties of ζ3 Librae

ζ3 Librae belongs to spectral class G6


The red dot in the diagram below shows where ζ3 Librae is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of ζ3 Librae. Attribution: Richard Powell / CC BY-SA

Alternative designations of ζ3 Librae

ζ3 Librae
(zeta3 Librae)